56111964 has 48 divisors (see below), whose sum is σ = 134391936. Its totient is φ = 18216000.

The previous prime is 56111963. The next prime is 56111969. The reversal of 56111964 is 46911165.

56111964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56111963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80859 + ... + 81549.

It is an arithmetic number, because the mean of its divisors is an integer number (2799832).

Almost surely, 2^56111964 is an apocalyptic number.

It is an amenable number.

56111964 is an abundant number, since it is smaller than the sum of its proper divisors (78279972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56111964 is a wasteful number, since it uses less digits than its factorization.

56111964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 864 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 56111964 is about 7490.7919474512. The cubic root of 56111964 is about 382.8410423222.

It can be divided in two parts, 56111 and 964, that added together give a palindrome (57075).

The spelling of 56111964 in words is "fifty-six million, one hundred eleven thousand, nine hundred sixty-four".