56111156 has 12 divisors (see below), whose sum is σ = 99167460. Its totient is φ = 27777600.

The previous prime is 56111149. The next prime is 56111189. The reversal of 56111156 is 65111165.

It can be written as a sum of positive squares in 2 ways, for example, as 23232400 + 32878756 = 4820^2 + 5734^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69041 + ... + 69848.

It is an arithmetic number, because the mean of its divisors is an integer number (8263955).

Almost surely, 2^56111156 is an apocalyptic number.

It is an amenable number.

56111156 is a deficient number, since it is larger than the sum of its proper divisors (43056304).

56111156 is a wasteful number, since it uses less digits than its factorization.

56111156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138994 (or 138992 counting only the distinct ones).

The product of its digits is 900, while the sum is 26.

The square root of 56111156 is about 7490.7380143748. The cubic root of 56111156 is about 382.8392047043.

Subtracting 56111156 from its reverse (65111165), we obtain a palindrome (9000009).

The spelling of 56111156 in words is "fifty-six million, one hundred eleven thousand, one hundred fifty-six".