87455560 has 16 divisors (see below), whose sum is σ = 196775100. Its totient is φ = 34982208.

The previous prime is 87455551. The next prime is 87455573. The reversal of 87455560 is 6555478.

It can be written as a sum of positive squares in 2 ways, for example, as 86825124 + 630436 = 9318^2 + 794^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2186389 = 87455560 / (8 + 7 + 4 + 5 + 5 + 5 + 6 + 0).

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, 1093155 + ... + 1093234.

Almost surely, 2^87455560 is an apocalyptic number.

It is an amenable number.

87455560 is an abundant number, since it is smaller than the sum of its proper divisors (109319540).

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

87455560 is a wasteful number, since it uses less digits than its factorization.

87455560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186400 (or 2186396 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 87455560 is about 9351.7677473299. The cubic root of 87455560 is about 443.8768291840.

The spelling of 87455560 in words is "eighty-seven million, four hundred fifty-five thousand, five hundred sixty".