90605502 has 24 divisors (see below), whose sum is σ = 211413384. Its totient is φ = 27878544.

The previous prime is 90605477. The next prime is 90605503. The reversal of 90605502 is 20550609.

90605502 is a `hidden beast` number, since 9 + 0 + 605 + 50 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90605503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193368 + ... + 193835.

It is an arithmetic number, because the mean of its divisors is an integer number (8808891).

Almost surely, 2^90605502 is an apocalyptic number.

90605502 is an abundant number, since it is smaller than the sum of its proper divisors (120807882).

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

90605502 is a wasteful number, since it uses less digits than its factorization.

90605502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387224 (or 387221 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 90605502 is about 9518.6922421097. The cubic root of 90605502 is about 449.1432290580.

The spelling of 90605502 in words is "ninety million, six hundred five thousand, five hundred two".