25206010065 has 24 divisors (see below), whose sum is σ = 43699601088. Its totient is φ = 13440379680.

The previous prime is 25206010061. The next prime is 25206010073. The reversal of 25206010065 is 56001060252.

25206010065 is a `hidden beast` number, since 2 + 52 + 0 + 601 + 0 + 0 + 6 + 5 = 666.

It is not a de Polignac number, because 25206010065 - 2² = 25206010061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25206010061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167130 + ... + 279900.

It is an arithmetic number, because the mean of its divisors is an integer number (1820816712).

Almost surely, 2^25206010065 is an apocalyptic number.

It is an amenable number.

25206010065 is a deficient number, since it is larger than the sum of its proper divisors (18493591023).

25206010065 is a wasteful number, since it uses less digits than its factorization.

25206010065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117749 (or 117746 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 25206010065 in words is "twenty-five billion, two hundred six million, ten thousand, sixty-five".