90015022 has 4 divisors (see below), whose sum is σ = 135022536. Its totient is φ = 45007510.

The previous prime is 90015019. The next prime is 90015047. The reversal of 90015022 is 22051009.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22503754 + ... + 22503757.

It is an arithmetic number, because the mean of its divisors is an integer number (33755634).

Almost surely, 2^90015022 is an apocalyptic number.

90015022 is a deficient number, since it is larger than the sum of its proper divisors (45007514).

90015022 is a wasteful number, since it uses less digits than its factorization.

90015022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45007513.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 90015022 is about 9487.6246763877. The cubic root of 90015022 is about 448.1654064768.

The spelling of 90015022 in words is "ninety million, fifteen thousand, twenty-two".