56371865 has 8 divisors (see below), whose sum is σ = 73795968. Its totient is φ = 40997680.

The previous prime is 56371849. The next prime is 56371891. The reversal of 56371865 is 56817365.

56371865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56371865 - 2⁴ = 56371849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 512417 + ... + 512526.

It is an arithmetic number, because the mean of its divisors is an integer number (9224496).

Almost surely, 2^56371865 is an apocalyptic number.

56371865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56371865 is a deficient number, since it is larger than the sum of its proper divisors (17424103).

56371865 is a wasteful number, since it uses less digits than its factorization.

56371865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024959.

The product of its digits is 151200, while the sum is 41.

The square root of 56371865 is about 7508.1199377740. The cubic root of 56371865 is about 383.4312167595.

The spelling of 56371865 in words is "fifty-six million, three hundred seventy-one thousand, eight hundred sixty-five".