90500577 has 4 divisors (see below), whose sum is σ = 120667440. Its totient is φ = 60333716.

The previous prime is 90500573. The next prime is 90500593. The reversal of 90500577 is 77500509.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90500577 - 2² = 90500573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90500573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15083427 + ... + 15083432.

It is an arithmetic number, because the mean of its divisors is an integer number (30166860).

Almost surely, 2^90500577 is an apocalyptic number.

It is an amenable number.

90500577 is a deficient number, since it is larger than the sum of its proper divisors (30166863).

90500577 is a wasteful number, since it uses less digits than its factorization.

90500577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30166862.

The product of its (nonzero) digits is 11025, while the sum is 33.

The square root of 90500577 is about 9513.1791216186. The cubic root of 90500577 is about 448.9697864766.

The spelling of 90500577 in words is "ninety million, five hundred thousand, five hundred seventy-seven".