87552090 has 40 divisors (see below), whose sum is σ = 235420020. Its totient is φ = 23347008.

The previous prime is 87552089. The next prime is 87552107. The reversal of 87552090 is 9025578.

It can be written as a sum of positive squares in 2 ways, for example, as 87441201 + 110889 = 9351^2 + 333^2 .

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53235 + ... + 54854.

Almost surely, 2^87552090 is an apocalyptic number.

87552090 is an abundant number, since it is smaller than the sum of its proper divisors (147867930).

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

87552090 is a wasteful number, since it uses less digits than its factorization.

87552090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108108 (or 108099 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 87552090 is about 9356.9273802889. The cubic root of 87552090 is about 444.0400803847.

The spelling of 87552090 in words is "eighty-seven million, five hundred fifty-two thousand, ninety".