25012525264 has 20 divisors (see below), whose sum is σ = 48505188004. Its totient is φ = 12495057408.

The previous prime is 25012525261. The next prime is 25012525301. The reversal of 25012525264 is 46252521052.

It can be written as a sum of positive squares in 2 ways, for example, as 7378810000 + 17633715264 = 85900^2 + 132792^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012525261) 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, 681897 + ... + 717640.

Almost surely, 2^25012525264 is an apocalyptic number.

It is an amenable number.

25012525264 is a deficient number, since it is larger than the sum of its proper divisors (23492662740).

25012525264 is a wasteful number, since it uses less digits than its factorization.

25012525264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400662 (or 1400656 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 25012525264 in words is "twenty-five billion, twelve million, five hundred twenty-five thousand, two hundred sixty-four".