56818151 has 12 divisors (see below), whose sum is σ = 64584072. Its totient is φ = 49683024.

The previous prime is 56818141. The next prime is 56818207. The reversal of 56818151 is 15181865.

It is a de Polignac number, because none of the positive numbers 2^k-56818151 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

56818151 is a modest number, since divided by 8151 gives 5681 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56818141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1361 + ... + 10746.

It is an arithmetic number, because the mean of its divisors is an integer number (5382006).

Almost surely, 2^56818151 is an apocalyptic number.

56818151 is a deficient number, since it is larger than the sum of its proper divisors (7765921).

56818151 is a wasteful number, since it uses less digits than its factorization.

56818151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12158 (or 12139 counting only the distinct ones).

The product of its digits is 9600, while the sum is 35.

The square root of 56818151 is about 7537.7815701969. The cubic root of 56818151 is about 384.4404104075.

The spelling of 56818151 in words is "fifty-six million, eight hundred eighteen thousand, one hundred fifty-one".