25601948264 has 16 divisors (see below), whose sum is σ = 48582011520. Its totient is φ = 12646745200.

The previous prime is 25601948137. The next prime is 25601948279. The reversal of 25601948264 is 46284910652.

It is a super-2 number, since 2×25601948264² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19277912 + ... + 19279239.

It is an arithmetic number, because the mean of its divisors is an integer number (3036375720).

Almost surely, 2^25601948264 is an apocalyptic number.

It is an amenable number.

25601948264 is a deficient number, since it is larger than the sum of its proper divisors (22980063256).

25601948264 is a wasteful number, since it uses less digits than its factorization.

25601948264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38557240 (or 38557236 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 25601948264 in words is "twenty-five billion, six hundred one million, nine hundred forty-eight thousand, two hundred sixty-four".