56939187 has 4 divisors (see below), whose sum is σ = 75918920. Its totient is φ = 37959456.

The previous prime is 56939177. The next prime is 56939249. The reversal of 56939187 is 78193965.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56939187 - 2⁶ = 56939123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56939117) 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, 9489862 + ... + 9489867.

It is an arithmetic number, because the mean of its divisors is an integer number (18979730).

Almost surely, 2^56939187 is an apocalyptic number.

56939187 is a deficient number, since it is larger than the sum of its proper divisors (18979733).

56939187 is a wasteful number, since it uses less digits than its factorization.

56939187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18979732.

The product of its digits is 408240, while the sum is 48.

The square root of 56939187 is about 7545.8059211724. The cubic root of 56939187 is about 384.7131995720.

The spelling of 56939187 in words is "fifty-six million, nine hundred thirty-nine thousand, one hundred eighty-seven".