90225588 has 24 divisors (see below), whose sum is σ = 213979360. Its totient is φ = 29581920.

The previous prime is 90225587. The next prime is 90225589. The reversal of 90225588 is 88552209.

It is an interprime number because it is at equal distance from previous prime (90225587) and next prime (90225589).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90225581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60898 + ... + 62361.

Almost surely, 2^90225588 is an apocalyptic number.

It is an amenable number.

90225588 is an abundant number, since it is smaller than the sum of its proper divisors (123753772).

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

90225588 is a wasteful number, since it uses less digits than its factorization.

90225588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123327 (or 123325 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 90225588 is about 9498.7150709978. The cubic root of 90225588 is about 448.5145885992.

The spelling of 90225588 in words is "ninety million, two hundred twenty-five thousand, five hundred eighty-eight".