90013275 has 84 divisors (see below), whose sum is σ = 182968200. Its totient is φ = 43545600.

The previous prime is 90013229. The next prime is 90013309. The reversal of 90013275 is 57231009.

It is not a de Polignac number, because 90013275 - 2⁹ = 90012763 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 200251 + ... + 200699.

Almost surely, 2^90013275 is an apocalyptic number.

90013275 is an abundant number, since it is smaller than the sum of its proper divisors (92954925).

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

90013275 is a wasteful number, since it uses less digits than its factorization.

90013275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 90013275 is about 9487.5326086396. The cubic root of 90013275 is about 448.1625071458.

The spelling of 90013275 in words is "ninety million, thirteen thousand, two hundred seventy-five".