87722825553 has 32 divisors (see below), whose sum is σ = 150113934720. Its totient is φ = 50037972480.

The previous prime is 87722825543. The next prime is 87722825557. The reversal of 87722825553 is 35552822778.

87722825553 is a `hidden beast` number, since 8 + 7 + 7 + 2 + 2 + 82 + 5 + 553 = 666.

It is not a de Polignac number, because 87722825553 - 2⁸ = 87722825297 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87722825553.

It is not an unprimeable number, because it can be changed into a prime (87722825557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8682100 + ... + 8692197.

It is an arithmetic number, because the mean of its divisors is an integer number (4691060460).

Almost surely, 2^87722825553 is an apocalyptic number.

It is an amenable number.

87722825553 is a deficient number, since it is larger than the sum of its proper divisors (62391109167).

87722825553 is a wasteful number, since it uses less digits than its factorization.

87722825553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17374334 (or 17374328 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 54.

The spelling of 87722825553 in words is "eighty-seven billion, seven hundred twenty-two million, eight hundred twenty-five thousand, five hundred fifty-three".