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25245054 = 2331094289
BaseRepresentation
bin110000001001…
…1010101111110
31202111120201000
41200103111332
522430320204
62301031130
7424402512
oct140232576
952446630
1025245054
1113282a8a
1285554a6
1352cb903
1434d2142
15233a039
hex181357e

25245054 has 32 divisors (see below), whose sum is σ = 56628000. Its totient is φ = 8335872.

The previous prime is 25245049. The next prime is 25245061. The reversal of 25245054 is 45054252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3742 + ... + 8030.

It is an arithmetic number, because the mean of its divisors is an integer number (1769625).

Almost surely, 225245054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25245054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28314000).

25245054 is an abundant number, since it is smaller than the sum of its proper divisors (31382946).

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

25245054 is a wasteful number, since it uses less digits than its factorization.

25245054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409 (or 4403 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 25245054 is about 5024.4456410633. The cubic root of 25245054 is about 293.3540587399.

The spelling of 25245054 in words is "twenty-five million, two hundred forty-five thousand, fifty-four".

Divisors: 1 2 3 6 9 18 27 54 109 218 327 654 981 1962 2943 4289 5886 8578 12867 25734 38601 77202 115803 231606 467501 935002 1402503 2805006 4207509 8415018 12622527 25245054