25314245565 has 32 divisors (see below), whose sum is σ = 46713596160. Its totient is φ = 11466054144.

The previous prime is 25314245557. The next prime is 25314245569. The reversal of 25314245565 is 56554241352.

It is not a de Polignac number, because 25314245565 - 2³ = 25314245557 is a prime.

It is a super-2 number, since 2×25314245565² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25314245569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1094464 + ... + 1117353.

It is an arithmetic number, because the mean of its divisors is an integer number (1459799880).

Almost surely, 2^25314245565 is an apocalyptic number.

It is an amenable number.

25314245565 is a deficient number, since it is larger than the sum of its proper divisors (21399350595).

25314245565 is a wasteful number, since it uses less digits than its factorization.

25314245565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211941.

The product of its digits is 720000, while the sum is 42.

The spelling of 25314245565 in words is "twenty-five billion, three hundred fourteen million, two hundred forty-five thousand, five hundred sixty-five".