25251264012765 has 16 divisors (see below), whose sum is σ = 46173739909248. Its totient is φ = 11543434977216.

The previous prime is 25251264012757. The next prime is 25251264012773. The reversal of 25251264012765 is 56721046215252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25251264012757) and next prime (25251264012773).

It is not a de Polignac number, because 25251264012765 - 2³ = 25251264012757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120244114242 + ... + 120244114451.

It is an arithmetic number, because the mean of its divisors is an integer number (2885858744328).

Almost surely, 2^{25251264012765} is an apocalyptic number.

It is an amenable number.

25251264012765 is a deficient number, since it is larger than the sum of its proper divisors (20922475896483).

25251264012765 is a wasteful number, since it uses less digits than its factorization.

25251264012765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240488228708.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 25251264012765 in words is "twenty-five trillion, two hundred fifty-one billion, two hundred sixty-four million, twelve thousand, seven hundred sixty-five".