90845055 has 48 divisors (see below), whose sum is σ = 187799040. Its totient is φ = 39720384.

The previous prime is 90845047. The next prime is 90845087. The reversal of 90845055 is 55054809.

It is a happy number.

It is not a de Polignac number, because 90845055 - 2³ = 90845047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 976 + ... + 13514.

It is an arithmetic number, because the mean of its divisors is an integer number (3912480).

Almost surely, 2^90845055 is an apocalyptic number.

90845055 is an abundant number, since it is smaller than the sum of its proper divisors (96953985).

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

90845055 is a wasteful number, since it uses less digits than its factorization.

90845055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580 (or 12577 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 90845055 is about 9531.2672294926. The cubic root of 90845055 is about 449.5387124886.

The spelling of 90845055 in words is "ninety million, eight hundred forty-five thousand, fifty-five".