90722825 has 12 divisors (see below), whose sum is σ = 114404880. Its totient is φ = 71346960.

The previous prime is 90722813. The next prime is 90722843. The reversal of 90722825 is 52822709.

It is not a de Polignac number, because 90722825 - 2⁴ = 90722809 is a prime.

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, 29279 + ... + 32228.

It is an arithmetic number, because the mean of its divisors is an integer number (9533740).

Almost surely, 2^90722825 is an apocalyptic number.

It is an amenable number.

90722825 is a deficient number, since it is larger than the sum of its proper divisors (23682055).

90722825 is a wasteful number, since it uses less digits than its factorization.

90722825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61576 (or 61571 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 90722825 is about 9524.8530172386. The cubic root of 90722825 is about 449.3370072201.

It can be divided in two parts, 907 and 22825, that added together give a palindrome (23732).

The spelling of 90722825 in words is "ninety million, seven hundred twenty-two thousand, eight hundred twenty-five".