90522513 has 12 divisors (see below), whose sum is σ = 131414400. Its totient is φ = 60043896.

The previous prime is 90522493. The next prime is 90522521. The reversal of 90522513 is 31522509.

90522513 is a `hidden beast` number, since 90 + 522 + 51 + 3 = 666.

It is not a de Polignac number, because 90522513 - 2⁹ = 90522001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90522583) 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, 23481 + ... + 27062.

It is an arithmetic number, because the mean of its divisors is an integer number (10951200).

Almost surely, 2^90522513 is an apocalyptic number.

It is an amenable number.

90522513 is a deficient number, since it is larger than the sum of its proper divisors (40891887).

90522513 is a wasteful number, since it uses less digits than its factorization.

90522513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50748 (or 50745 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 90522513 is about 9514.3319786520. The cubic root of 90522513 is about 449.0060580893.

The spelling of 90522513 in words is "ninety million, five hundred twenty-two thousand, five hundred thirteen".