25572564941 has 16 divisors (see below), whose sum is σ = 32331737088. Its totient is φ = 19646012400.

The previous prime is 25572564931. The next prime is 25572564943. The reversal of 25572564941 is 14946527552.

It is a de Polignac number, because none of the positive numbers 2^k-25572564941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25572564941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25572564943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2333345 + ... + 2344278.

It is an arithmetic number, because the mean of its divisors is an integer number (2020733568).

Almost surely, 2^25572564941 is an apocalyptic number.

It is an amenable number.

25572564941 is a deficient number, since it is larger than the sum of its proper divisors (6759172147).

25572564941 is a wasteful number, since it uses less digits than its factorization.

25572564941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677712.

The product of its digits is 3024000, while the sum is 50.

The spelling of 25572564941 in words is "twenty-five billion, five hundred seventy-two million, five hundred sixty-four thousand, nine hundred forty-one".