56672113 has 8 divisors (see below), whose sum is σ = 57130920. Its totient is φ = 56215680.

The previous prime is 56672089. The next prime is 56672131. The reversal of 56672113 is 31127665.

It can be written as a sum of positive squares in 4 ways, for example, as 3265249 + 53406864 = 1807^2 + 7308^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56672113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56672513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122703 + ... + 123163.

It is an arithmetic number, because the mean of its divisors is an integer number (7141365).

Almost surely, 2^56672113 is an apocalyptic number.

It is an amenable number.

56672113 is a deficient number, since it is larger than the sum of its proper divisors (458807).

56672113 is a wasteful number, since it uses less digits than its factorization.

56672113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187.

The product of its digits is 7560, while the sum is 31.

The square root of 56672113 is about 7528.0882699395. The cubic root of 56672113 is about 384.1107559028.

Adding to 56672113 its reverse (31127665), we get a palindrome (87799778).

The spelling of 56672113 in words is "fifty-six million, six hundred seventy-two thousand, one hundred thirteen".