56111646 has 32 divisors (see below), whose sum is σ = 116328960. Its totient is φ = 18031104.

The previous prime is 56111639. The next prime is 56111677. The reversal of 56111646 is 64611165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19006 + ... + 21758.

It is an arithmetic number, because the mean of its divisors is an integer number (3635280).

Almost surely, 2^56111646 is an apocalyptic number.

56111646 is an abundant number, since it is smaller than the sum of its proper divisors (60217314).

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

56111646 is a wasteful number, since it uses less digits than its factorization.

56111646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880.

The product of its digits is 4320, while the sum is 30.

The square root of 56111646 is about 7490.7707213611. The cubic root of 56111646 is about 382.8403191034.

The spelling of 56111646 in words is "fifty-six million, one hundred eleven thousand, six hundred forty-six".