25016374565 has 48 divisors (see below), whose sum is σ = 39335735808. Its totient is φ = 14903036928.

The previous prime is 25016374517. The next prime is 25016374573. The reversal of 25016374565 is 56547361052.

It is a happy number.

It is not a de Polignac number, because 25016374565 - 2⁸ = 25016374309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23837 + ... + 224946.

It is an arithmetic number, because the mean of its divisors is an integer number (819494496).

Almost surely, 2^25016374565 is an apocalyptic number.

It is an amenable number.

25016374565 is a deficient number, since it is larger than the sum of its proper divisors (14319361243).

25016374565 is a wasteful number, since it uses less digits than its factorization.

25016374565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248838 (or 248825 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 25016374565 in words is "twenty-five billion, sixteen million, three hundred seventy-four thousand, five hundred sixty-five".