25231026065 has 16 divisors (see below), whose sum is σ = 34781847168. Its totient is φ = 17211626496.

The previous prime is 25231026061. The next prime is 25231026071. The reversal of 25231026065 is 56062013252.

It is a cyclic number.

It is not a de Polignac number, because 25231026065 - 2² = 25231026061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25231026061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1860827 + ... + 1874336.

It is an arithmetic number, because the mean of its divisors is an integer number (2173865448).

Almost surely, 2^25231026065 is an apocalyptic number.

It is an amenable number.

25231026065 is a deficient number, since it is larger than the sum of its proper divisors (9550821103).

25231026065 is a wasteful number, since it uses less digits than its factorization.

25231026065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735368.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 25231026065 in words is "twenty-five billion, two hundred thirty-one million, twenty-six thousand, sixty-five".