25604361 has 12 divisors (see below), whose sum is σ = 38259780. Its totient is φ = 16480800.

The previous prime is 25604297. The next prime is 25604389. The reversal of 25604361 is 16340652.

25604361 is a `hidden beast` number, since 2 + 560 + 43 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6734025 + 18870336 = 2595^2 + 4344^2 .

It is not a de Polignac number, because 25604361 - 2⁶ = 25604297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25604561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48790 + ... + 49311.

It is an arithmetic number, because the mean of its divisors is an integer number (3188315).

Almost surely, 2^25604361 is an apocalyptic number.

It is an amenable number.

25604361 is a deficient number, since it is larger than the sum of its proper divisors (12655419).

25604361 is a wasteful number, since it uses less digits than its factorization.

25604361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98136 (or 98133 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 25604361 is about 5060.0751970697. The cubic root of 25604361 is about 294.7392544216.

The spelling of 25604361 in words is "twenty-five million, six hundred four thousand, three hundred sixty-one".