90479025 has 120 divisors (see below), whose sum is σ = 206695104. Its totient is φ = 38102400.

The previous prime is 90479021. The next prime is 90479069. The reversal of 90479025 is 52097409.

It is not a de Polignac number, because 90479025 - 2² = 90479021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90479021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 184030 + ... + 184520.

Almost surely, 2^90479025 is an apocalyptic number.

It is an amenable number.

90479025 is an abundant number, since it is smaller than the sum of its proper divisors (116216079).

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

90479025 is a wasteful number, since it uses less digits than its factorization.

90479025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 90479025 is about 9512.0463098116. The cubic root of 90479025 is about 448.9341441070.

The spelling of 90479025 in words is "ninety million, four hundred seventy-nine thousand, twenty-five".