56887090 has 48 divisors (see below), whose sum is σ = 113722056. Its totient is φ = 20467200.

The previous prime is 56887079. The next prime is 56887091. The reversal of 56887090 is 9078865.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 11607649 + 45279441 = 3407^2 + 6729^2 .

It is a super-2 number, since 2×56887090² = 6472282017336200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56887091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68880 + ... + 69700.

Almost surely, 2^56887090 is an apocalyptic number.

56887090 is a deficient number, since it is larger than the sum of its proper divisors (56834966).

56887090 is a wasteful number, since it uses less digits than its factorization.

56887090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 56887090 is about 7542.3530811014. The cubic root of 56887090 is about 384.5958315496.

The spelling of 56887090 in words is "fifty-six million, eight hundred eighty-seven thousand, ninety".