25275138772 has 24 divisors (see below), whose sum is σ = 47742464000. Its totient is φ = 11638865376.

The previous prime is 25275138769. The next prime is 25275138781. The reversal of 25275138772 is 27783157252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530772 + ... + 576427.

Almost surely, 2^25275138772 is an apocalyptic number.

It is an amenable number.

25275138772 is a deficient number, since it is larger than the sum of its proper divisors (22467325228).

25275138772 is a wasteful number, since it uses less digits than its factorization.

25275138772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107655 (or 1107653 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 49.

The spelling of 25275138772 in words is "twenty-five billion, two hundred seventy-five million, one hundred thirty-eight thousand, seven hundred seventy-two".