90522057 has 8 divisors (see below), whose sum is σ = 121109184. Its totient is φ = 60141488.

The previous prime is 90522053. The next prime is 90522067. The reversal of 90522057 is 75022509.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90522057 - 2² = 90522053 is a prime.

It is a super-2 number, since 2×90522057² = 16388485607022498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90522053) 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, 50613 + ... + 52370.

It is an arithmetic number, because the mean of its divisors is an integer number (15138648).

Almost surely, 2^90522057 is an apocalyptic number.

It is an amenable number.

90522057 is a deficient number, since it is larger than the sum of its proper divisors (30587127).

90522057 is a wasteful number, since it uses less digits than its factorization.

90522057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103279.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 90522057 is about 9514.3080147744. The cubic root of 90522057 is about 449.0053041438.

The spelling of 90522057 in words is "ninety million, five hundred twenty-two thousand, fifty-seven".