90492558 has 16 divisors (see below), whose sum is σ = 194907216. Its totient is φ = 27843840.

The previous prime is 90492551. The next prime is 90492569. The reversal of 90492558 is 85529409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90492551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580003 + ... + 580158.

It is an arithmetic number, because the mean of its divisors is an integer number (12181701).

Almost surely, 2^90492558 is an apocalyptic number.

90492558 is an abundant number, since it is smaller than the sum of its proper divisors (104414658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90492558 is a wasteful number, since it uses less digits than its factorization.

90492558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160179.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 90492558 is about 9512.7576443427. The cubic root of 90492558 is about 448.9565254375.

The spelling of 90492558 in words is "ninety million, four hundred ninety-two thousand, five hundred fifty-eight".