56021490 has 64 divisors (see below), whose sum is σ = 170737920. Its totient is φ = 12804480.

The previous prime is 56021489. The next prime is 56021501. The reversal of 56021490 is 9412065.

56021490 is a `hidden beast` number, since 560 + 2 + 14 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12931 + ... + 16710.

It is an arithmetic number, because the mean of its divisors is an integer number (2667780).

Almost surely, 2^56021490 is an apocalyptic number.

56021490 is an abundant number, since it is smaller than the sum of its proper divisors (114716430).

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

56021490 is a wasteful number, since it uses less digits than its factorization.

56021490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29664 (or 29658 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 56021490 is about 7484.7504968436. The cubic root of 56021490 is about 382.6351694518.

The spelling of 56021490 in words is "fifty-six million, twenty-one thousand, four hundred ninety".