56065729 has 4 divisors (see below), whose sum is σ = 57999060. Its totient is φ = 54132400.

The previous prime is 56065727. The next prime is 56065739. The reversal of 56065729 is 92756065.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19184400 + 36881329 = 4380^2 + 6073^2 .

It is a cyclic number.

It is not a de Polignac number, because 56065729 - 2¹ = 56065727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56065691 and 56065700.

It is not an unprimeable number, because it can be changed into a prime (56065727) 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, 966622 + ... + 966679.

It is an arithmetic number, because the mean of its divisors is an integer number (14499765).

Almost surely, 2^56065729 is an apocalyptic number.

It is an amenable number.

56065729 is a deficient number, since it is larger than the sum of its proper divisors (1933331).

56065729 is a wasteful number, since it uses less digits than its factorization.

56065729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933330.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 56065729 is about 7487.7051891751. The cubic root of 56065729 is about 382.7358626172.

The spelling of 56065729 in words is "fifty-six million, sixty-five thousand, seven hundred twenty-nine".