90255820152 has 16 divisors (see below), whose sum is σ = 225639550440. Its totient is φ = 30085273376.

The previous prime is 90255820141. The next prime is 90255820177. The reversal of 90255820152 is 25102855209.

It is a super-2 number, since 2×90255820152² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90255820152.

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, 1880329563 + ... + 1880329610.

Almost surely, 2^90255820152 is an apocalyptic number.

It is an amenable number.

90255820152 is an abundant number, since it is smaller than the sum of its proper divisors (135383730288).

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

90255820152 is a wasteful number, since it uses less digits than its factorization.

90255820152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760659182 (or 3760659178 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 90255820152 in words is "ninety billion, two hundred fifty-five million, eight hundred twenty thousand, one hundred fifty-two".