56601729 has 12 divisors (see below), whose sum is σ = 81898596. Its totient is φ = 37669632.

The previous prime is 56601719. The next prime is 56601737. The reversal of 56601729 is 92710665.

It can be written as a sum of positive squares in 2 ways, for example, as 17514225 + 39087504 = 4185^2 + 6252^2 .

It is a de Polignac number, because none of the positive numbers 2^k-56601729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56601693 and 56601702.

It is not an unprimeable number, because it can be changed into a prime (56601719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457 + ... + 10649.

It is an arithmetic number, because the mean of its divisors is an integer number (6824883).

Almost surely, 2^56601729 is an apocalyptic number.

It is an amenable number.

56601729 is a deficient number, since it is larger than the sum of its proper divisors (25296867).

56601729 is a wasteful number, since it uses less digits than its factorization.

56601729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10816 (or 10813 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 56601729 is about 7523.4120583682. The cubic root of 56601729 is about 383.9516744199.

The spelling of 56601729 in words is "fifty-six million, six hundred one thousand, seven hundred twenty-nine".