90575285 has 8 divisors (see below), whose sum is σ = 109767096. Its totient is φ = 71742400.

The previous prime is 90575279. The next prime is 90575293. The reversal of 90575285 is 58257509.

It can be written as a sum of positive squares in 4 ways, for example, as 55457809 + 35117476 = 7447^2 + 5926^2 .

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

It is not a de Polignac number, because 90575285 - 2⁸ = 90575029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 89174 + ... + 90183.

It is an arithmetic number, because the mean of its divisors is an integer number (13720887).

Almost surely, 2^90575285 is an apocalyptic number.

It is an amenable number.

90575285 is a deficient number, since it is larger than the sum of its proper divisors (19191811).

90575285 is a wasteful number, since it uses less digits than its factorization.

90575285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179463.

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 90575285 is about 9517.1048644007. The cubic root of 90575285 is about 449.0932936432.

The spelling of 90575285 in words is "ninety million, five hundred seventy-five thousand, two hundred eighty-five".