56604498889 has 15 divisors (see below), whose sum is σ = 58566790583. Its totient is φ = 54707586648.

The previous prime is 56604498787. The next prime is 56604498913. The reversal of 56604498889 is 98889440665.

The square root of 56604498889 is 237917.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 40806020025 + 15798478864 = 202005^2 + 125692^2 .

It is not a de Polignac number, because 56604498889 - 2⁷ = 56604498761 is a prime.

It is a super-3 number, since 3×56604498889³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56604498989) 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 14 ways as a sum of consecutive naturals, for example, 844843234 + ... + 844843300.

Almost surely, 2^56604498889 is an apocalyptic number.

56604498889 is the 237917-th square number.

56604498889 is the 118959-th centered octagonal number.

It is an amenable number.

56604498889 is a deficient number, since it is larger than the sum of its proper divisors (1962291694).

56604498889 is an frugal number, since it uses more digits than its factorization.

56604498889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 67.

The spelling of 56604498889 in words is "fifty-six billion, six hundred four million, four hundred ninety-eight thousand, eight hundred eighty-nine".