56244681 has 6 divisors (see below), whose sum is σ = 81242330. Its totient is φ = 37496448.

The previous prime is 56244677. The next prime is 56244689. The reversal of 56244681 is 18644265.

It can be written as a sum of positive squares in only one way, i.e., 56115081 + 129600 = 7491^2 + 360^2 .

It is not a de Polignac number, because 56244681 - 2² = 56244677 is a prime.

It is a super-2 number, since 2×56244681² = 6326928281583522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56244689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3124696 + ... + 3124713.

Almost surely, 2^56244681 is an apocalyptic number.

It is an amenable number.

56244681 is a deficient number, since it is larger than the sum of its proper divisors (24997649).

56244681 is a wasteful number, since it uses less digits than its factorization.

56244681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249415 (or 6249412 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 56244681 is about 7499.6453916169. The cubic root of 56244681 is about 383.1426387794.

The spelling of 56244681 in words is "fifty-six million, two hundred forty-four thousand, six hundred eighty-one".