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25385052 = 22371183331
BaseRepresentation
bin110000011010…
…1100001011100
31202202200202010
41200311201130
522444310202
62304031220
7425524620
oct140654134
952680663
1025385052
1113369190
128602510
13534a554
14352b180
15236676c
hex183585c

25385052 has 96 divisors (see below), whose sum is σ = 74962944. Its totient is φ = 6494400.

The previous prime is 25385051. The next prime is 25385057. The reversal of 25385052 is 25058352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25385051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76527 + ... + 76857.

It is an arithmetic number, because the mean of its divisors is an integer number (780864).

Almost surely, 225385052 is an apocalyptic number.

25385052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25385052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37481472).

25385052 is an abundant number, since it is smaller than the sum of its proper divisors (49577892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25385052 is a wasteful number, since it uses less digits than its factorization.

25385052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 25385052 is about 5038.3580658782. The cubic root of 25385052 is about 293.8953304109.

The spelling of 25385052 in words is "twenty-five million, three hundred eighty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 83 84 132 154 166 231 249 308 331 332 462 498 581 662 913 924 993 996 1162 1324 1743 1826 1986 2317 2324 2739 3486 3641 3652 3972 4634 5478 6391 6951 6972 7282 9268 10923 10956 12782 13902 14564 19173 21846 25487 25564 27473 27804 38346 43692 50974 54946 76461 76692 82419 101948 109892 152922 164838 192311 302203 305844 329676 384622 576933 604406 769244 906609 1153866 1208812 1813218 2115421 2307732 3626436 4230842 6346263 8461684 12692526 25385052