56443937 has 4 divisors (see below), whose sum is σ = 61575216. Its totient is φ = 51312660.

The previous prime is 56443931. The next prime is 56443939. The reversal of 56443937 is 73934465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56443937 - 2¹² = 56439841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56443894 and 56443903.

It is not an unprimeable number, because it can be changed into a prime (56443931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565623 + ... + 2565644.

It is an arithmetic number, because the mean of its divisors is an integer number (15393804).

Almost surely, 2^56443937 is an apocalyptic number.

It is an amenable number.

56443937 is a deficient number, since it is larger than the sum of its proper divisors (5131279).

56443937 is a wasteful number, since it uses less digits than its factorization.

56443937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131278.

The product of its digits is 272160, while the sum is 41.

The square root of 56443937 is about 7512.9180083374. The cubic root of 56443937 is about 383.5945540670.

The spelling of 56443937 in words is "fifty-six million, four hundred forty-three thousand, nine hundred thirty-seven".