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25185052 = 2230720509
BaseRepresentation
bin110000000010…
…0101100011100
31202101112101201
41200010230130
522421410202
62255445244
7424032544
oct140045434
952345351
1025185052
11132419a2
128526824
1352aa4c9
1434b8324
152327387
hex1804b1c

25185052 has 12 divisors (see below), whose sum is σ = 44219560. Its totient is φ = 12550896.

The previous prime is 25185047. The next prime is 25185053. The reversal of 25185052 is 25058152.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25185052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25185053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9027 + ... + 11482.

Almost surely, 225185052 is an apocalyptic number.

It is an amenable number.

25185052 is a deficient number, since it is larger than the sum of its proper divisors (19034508).

25185052 is a wasteful number, since it uses less digits than its factorization.

25185052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20820 (or 20818 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 25185052 is about 5018.4710819133. The cubic root of 25185052 is about 293.1214614436.

The spelling of 25185052 in words is "twenty-five million, one hundred eighty-five thousand, fifty-two".

Divisors: 1 2 4 307 614 1228 20509 41018 82036 6296263 12592526 25185052