90579025 has 12 divisors (see below), whose sum is σ = 112743900. Its totient is φ = 72188480.

The previous prime is 90579019. The next prime is 90579053. The reversal of 90579025 is 52097509.

It can be written as a sum of positive squares in 6 ways, for example, as 9884736 + 80694289 = 3144^2 + 8983^2 .

It is not a de Polignac number, because 90579025 - 2³ = 90579017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10 + ... + 13459.

It is an arithmetic number, because the mean of its divisors is an integer number (9395325).

Almost surely, 2^90579025 is an apocalyptic number.

It is an amenable number.

90579025 is a deficient number, since it is larger than the sum of its proper divisors (22164875).

90579025 is a wasteful number, since it uses less digits than its factorization.

90579025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13748 (or 13743 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 90579025 is about 9517.3013506981. The cubic root of 90579025 is about 449.0994748209.

The spelling of 90579025 in words is "ninety million, five hundred seventy-nine thousand, twenty-five".