56065998 has 32 divisors (see below), whose sum is σ = 118851840. Its totient is φ = 17582400.

The previous prime is 56065993. The next prime is 56066027. The reversal of 56065998 is 89956065.

It is a super-2 number, since 2×56065998² = 6286792263472008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56065993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15586 + ... + 18842.

It is an arithmetic number, because the mean of its divisors is an integer number (3714120).

Almost surely, 2^56065998 is an apocalyptic number.

56065998 is an abundant number, since it is smaller than the sum of its proper divisors (62785842).

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

56065998 is a wasteful number, since it uses less digits than its factorization.

56065998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 56065998 is about 7487.7231519334. The cubic root of 56065998 is about 382.7364747308.

The spelling of 56065998 in words is "fifty-six million, sixty-five thousand, nine hundred ninety-eight".