90107169225 has 12 divisors (see below), whose sum is σ = 148977186576. Its totient is φ = 48057156880.

The previous prime is 90107169221. The next prime is 90107169227. The reversal of 90107169225 is 52296170109.

It is not a de Polignac number, because 90107169225 - 2² = 90107169221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90107169221) 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, 600714387 + ... + 600714536.

It is an arithmetic number, because the mean of its divisors is an integer number (12414765548).

Almost surely, 2^90107169225 is an apocalyptic number.

It is an amenable number.

90107169225 is a deficient number, since it is larger than the sum of its proper divisors (58870017351).

90107169225 is a wasteful number, since it uses less digits than its factorization.

90107169225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201428936 (or 1201428931 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The spelling of 90107169225 in words is "ninety billion, one hundred seven million, one hundred sixty-nine thousand, two hundred twenty-five".