90565272 has 48 divisors (see below), whose sum is σ = 280322640. Its totient is φ = 25875648.

The previous prime is 90565259. The next prime is 90565303. The reversal of 90565272 is 27256509.

90565272 is a `hidden beast` number, since 90 + 565 + 2 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89343 + ... + 90350.

It is an arithmetic number, because the mean of its divisors is an integer number (5840055).

Almost surely, 2^90565272 is an apocalyptic number.

It is an amenable number.

90565272 is an abundant number, since it is smaller than the sum of its proper divisors (189757368).

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

90565272 is a wasteful number, since it uses less digits than its factorization.

90565272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179712 (or 179705 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 90565272 is about 9516.5787970257. The cubic root of 90565272 is about 449.0767441071.

The spelling of 90565272 in words is "ninety million, five hundred sixty-five thousand, two hundred seventy-two".