56712528329 has 4 divisors (see below), whose sum is σ = 56714242500. Its totient is φ = 56710814160.

The previous prime is 56712528289. The next prime is 56712528337. The reversal of 56712528329 is 92382521765.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92382521765 = 5 ⋅18476504353.

It can be written as a sum of positive squares in 2 ways, for example, as 23455535104 + 33256993225 = 153152^2 + 182365^2 .

It is a cyclic number.

It is not a de Polignac number, because 56712528329 - 2³² = 52417561033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56712528029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806462 + ... + 873959.

It is an arithmetic number, because the mean of its divisors is an integer number (14178560625).

Almost surely, 2^56712528329 is an apocalyptic number.

It is an amenable number.

56712528329 is a deficient number, since it is larger than the sum of its proper divisors (1714171).

56712528329 is a wasteful number, since it uses less digits than its factorization.

56712528329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714170.

The product of its digits is 1814400, while the sum is 50.

The spelling of 56712528329 in words is "fifty-six billion, seven hundred twelve million, five hundred twenty-eight thousand, three hundred twenty-nine".