90825291 has 24 divisors (see below), whose sum is σ = 137277504. Its totient is φ = 57805440.

The previous prime is 90825289. The next prime is 90825307. The reversal of 90825291 is 19252809.

It is not a de Polignac number, because 90825291 - 2¹ = 90825289 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90825211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14725 + ... + 19961.

It is an arithmetic number, because the mean of its divisors is an integer number (5719896).

Almost surely, 2^90825291 is an apocalyptic number.

90825291 is a deficient number, since it is larger than the sum of its proper divisors (46452213).

90825291 is a wasteful number, since it uses less digits than its factorization.

90825291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 90825291 is about 9530.2303749700. The cubic root of 90825291 is about 449.5061099894.

The spelling of 90825291 in words is "ninety million, eight hundred twenty-five thousand, two hundred ninety-one".