56939775 has 24 divisors (see below), whose sum is σ = 96441744. Its totient is φ = 29625600.

The previous prime is 56939761. The next prime is 56939809. The reversal of 56939775 is 57793965.

It is not a de Polignac number, because 56939775 - 2⁴ = 56939759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6184 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (4018406).

Almost surely, 2^56939775 is an apocalyptic number.

56939775 is a deficient number, since it is larger than the sum of its proper divisors (39501969).

56939775 is a wasteful number, since it uses less digits than its factorization.

56939775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18571 (or 18566 counting only the distinct ones).

The product of its digits is 1786050, while the sum is 51.

The square root of 56939775 is about 7545.8448831128. The cubic root of 56939775 is about 384.7145238537.

The spelling of 56939775 in words is "fifty-six million, nine hundred thirty-nine thousand, seven hundred seventy-five".