25065712465 has 16 divisors (see below), whose sum is σ = 30371931072. Its totient is φ = 19857334464.

The previous prime is 25065712453. The next prime is 25065712487. The reversal of 25065712465 is 56421756052.

It is a cyclic number.

It is not a de Polignac number, because 25065712465 - 2¹⁵ = 25065679697 is a prime.

It is a Duffinian 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, 1617082 + ... + 1632508.

It is an arithmetic number, because the mean of its divisors is an integer number (1898245692).

Almost surely, 2^25065712465 is an apocalyptic number.

It is an amenable number.

25065712465 is a deficient number, since it is larger than the sum of its proper divisors (5306218607).

25065712465 is a wasteful number, since it uses less digits than its factorization.

25065712465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18576.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 25065712465 in words is "twenty-five billion, sixty-five million, seven hundred twelve thousand, four hundred sixty-five".