25451107975 has 12 divisors (see below), whose sum is σ = 31807876864. Its totient is φ = 20200561920.

The previous prime is 25451107951. The next prime is 25451108047. The reversal of 25451107975 is 57970115452.

It is not a de Polignac number, because 25451107975 - 2¹³ = 25451099783 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4004874 + ... + 4011223.

Almost surely, 2^25451107975 is an apocalyptic number.

25451107975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25451107975 is a deficient number, since it is larger than the sum of its proper divisors (6356768889).

25451107975 is a wasteful number, since it uses less digits than its factorization.

25451107975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016234 (or 8016229 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 46.

The spelling of 25451107975 in words is "twenty-five billion, four hundred fifty-one million, one hundred seven thousand, nine hundred seventy-five".