25808268051 has 12 divisors (see below), whose sum is σ = 37280001720. Its totient is φ = 17204869440.

The previous prime is 25808268049. The next prime is 25808268071. The reversal of 25808268051 is 15086280852.

25808268051 is a `hidden beast` number, since 2 + 580 + 8 + 2 + 68 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 25808268051 - 2¹ = 25808268049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25808267988 and 25808268006.

It is not an unprimeable number, because it can be changed into a prime (25808268001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453931 + ... + 507611.

It is an arithmetic number, because the mean of its divisors is an integer number (3106666810).

Almost surely, 2^25808268051 is an apocalyptic number.

25808268051 is a deficient number, since it is larger than the sum of its proper divisors (11471733669).

25808268051 is a wasteful number, since it uses less digits than its factorization.

25808268051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107106 (or 107103 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 25808268051 in words is "twenty-five billion, eight hundred eight million, two hundred sixty-eight thousand, fifty-one".