25168575213 has 12 divisors (see below), whose sum is σ = 37527338368. Its totient is φ = 16237790280.

The previous prime is 25168575163. The next prime is 25168575233. The reversal of 25168575213 is 31257586152.

25168575213 is a `hidden beast` number, since 2 + 5 + 1 + 68 + 575 + 2 + 13 = 666.

It is not a de Polignac number, because 25168575213 - 2²⁹ = 24631704301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25168575233) 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, 45104695 + ... + 45105252.

Almost surely, 2^25168575213 is an apocalyptic number.

It is an amenable number.

25168575213 is a deficient number, since it is larger than the sum of its proper divisors (12358763155).

25168575213 is a wasteful number, since it uses less digits than its factorization.

25168575213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90209984 (or 90209981 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The spelling of 25168575213 in words is "twenty-five billion, one hundred sixty-eight million, five hundred seventy-five thousand, two hundred thirteen".