56880032618 has 4 divisors (see below), whose sum is σ = 85320048930. Its totient is φ = 28440016308.

The previous prime is 56880032579. The next prime is 56880032663. The reversal of 56880032618 is 81623008865.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53050526929 + 3829505689 = 230327^2 + 61883^2 .

It is a super-2 number, since 2×56880032618² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14220008153 + ... + 14220008156.

Almost surely, 2^56880032618 is an apocalyptic number.

56880032618 is a deficient number, since it is larger than the sum of its proper divisors (28440016312).

56880032618 is a wasteful number, since it uses less digits than its factorization.

56880032618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28440016311.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 56880032618 in words is "fifty-six billion, eight hundred eighty million, thirty-two thousand, six hundred eighteen".