56181118 has 16 divisors (see below), whose sum is σ = 96445440. Its totient is φ = 24043896.

The previous prime is 56181109. The next prime is 56181127. The reversal of 56181118 is 81118165.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56181109) and next prime (56181127).

It is a self number, because there is not a number n which added to its sum of digits gives 56181118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9355 + ... + 14137.

It is an arithmetic number, because the mean of its divisors is an integer number (6027840).

Almost surely, 2^56181118 is an apocalyptic number.

56181118 is a deficient number, since it is larger than the sum of its proper divisors (40264322).

56181118 is a wasteful number, since it uses less digits than its factorization.

56181118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631.

The product of its digits is 1920, while the sum is 31.

The square root of 56181118 is about 7495.4064599593. The cubic root of 56181118 is about 382.9982525308.

The spelling of 56181118 in words is "fifty-six million, one hundred eighty-one thousand, one hundred eighteen".