56328851569 has 27 divisors (see below), whose sum is σ = 62655175947. Its totient is φ = 50626830144.

The previous prime is 56328851567. The next prime is 56328851587. The reversal of 56328851569 is 96515882365.

The square root of 56328851569 is 237337.

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., 43854642225 + 12474209344 = 209415^2 + 111688^2 .

It is not a de Polignac number, because 56328851569 - 2¹ = 56328851567 is a prime.

It is a super-2 number, since 2×56328851569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56328851563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 92798464 + ... + 92799070.

Almost surely, 2^56328851569 is an apocalyptic number.

56328851569 is the 237337-th square number.

56328851569 is the 118669-th centered octagonal number.

It is an amenable number.

56328851569 is a deficient number, since it is larger than the sum of its proper divisors (6326324378).

56328851569 is an frugal number, since it uses more digits than its factorization.

56328851569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 647 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 58.

The spelling of 56328851569 in words is "fifty-six billion, three hundred twenty-eight million, eight hundred fifty-one thousand, five hundred sixty-nine".