90555502 has 8 divisors (see below), whose sum is σ = 139504536. Its totient is φ = 44053992.

The previous prime is 90555499. The next prime is 90555523. The reversal of 90555502 is 20555509.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611788 + ... + 611935.

It is an arithmetic number, because the mean of its divisors is an integer number (17438067).

Almost surely, 2^90555502 is an apocalyptic number.

90555502 is a deficient number, since it is larger than the sum of its proper divisors (48949034).

90555502 is a wasteful number, since it uses less digits than its factorization.

90555502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223762.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 90555502 is about 9516.0654684591. The cubic root of 90555502 is about 449.0605950267.

The spelling of 90555502 in words is "ninety million, five hundred fifty-five thousand, five hundred two".