56248181 has 12 divisors (see below), whose sum is σ = 62882400. Its totient is φ = 50261640.

The previous prime is 56248147. The next prime is 56248183. The reversal of 56248181 is 18184265.

It is not a de Polignac number, because 56248181 - 2²² = 52053877 is a prime.

It is a super-2 number, since 2×56248181² = 6327715731617522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56248183) 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, 3200 + ... + 11078.

It is an arithmetic number, because the mean of its divisors is an integer number (5240200).

Almost surely, 2^56248181 is an apocalyptic number.

It is an amenable number.

56248181 is a deficient number, since it is larger than the sum of its proper divisors (6634219).

56248181 is a wasteful number, since it uses less digits than its factorization.

56248181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960 (or 7949 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 56248181 is about 7499.8787323529. The cubic root of 56248181 is about 383.1505860282.

The spelling of 56248181 in words is "fifty-six million, two hundred forty-eight thousand, one hundred eighty-one".