56319187 has 4 divisors (see below), whose sum is σ = 56334240. Its totient is φ = 56304136.

The previous prime is 56319163. The next prime is 56319191. The reversal of 56319187 is 78191365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56319187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56311187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2913 + ... + 11005.

It is an arithmetic number, because the mean of its divisors is an integer number (14083560).

Almost surely, 2^56319187 is an apocalyptic number.

56319187 is a deficient number, since it is larger than the sum of its proper divisors (15053).

56319187 is an equidigital number, since it uses as much as digits as its factorization.

56319187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15052.

The product of its digits is 45360, while the sum is 40.

The square root of 56319187 is about 7504.6110492150. The cubic root of 56319187 is about 383.3117441317.

The spelling of 56319187 in words is "fifty-six million, three hundred nineteen thousand, one hundred eighty-seven".