90075502 has 16 divisors (see below), whose sum is σ = 147542400. Its totient is φ = 40902840.

The previous prime is 90075487. The next prime is 90075511. The reversal of 90075502 is 20557009.

It is a super-2 number, since 2×90075502² = 16227192121104008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40249 + ... + 42427.

It is an arithmetic number, because the mean of its divisors is an integer number (9221400).

Almost surely, 2^90075502 is an apocalyptic number.

90075502 is a deficient number, since it is larger than the sum of its proper divisors (57466898).

90075502 is a wasteful number, since it uses less digits than its factorization.

90075502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 90075502 is about 9490.8114510826. The cubic root of 90075502 is about 448.2657563034.

The spelling of 90075502 in words is "ninety million, seventy-five thousand, five hundred two".