56437859 has 4 divisors (see below), whose sum is σ = 56492016. Its totient is φ = 56383704.

The previous prime is 56437783. The next prime is 56437861. The reversal of 56437859 is 95873465.

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

It is a cyclic number.

It is not a de Polignac number, because 56437859 - 2¹² = 56433763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56427859) 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, 25484 + ... + 27609.

It is an arithmetic number, because the mean of its divisors is an integer number (14123004).

Almost surely, 2^56437859 is an apocalyptic number.

56437859 is a deficient number, since it is larger than the sum of its proper divisors (54157).

56437859 is a wasteful number, since it uses less digits than its factorization.

56437859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54156.

The product of its digits is 907200, while the sum is 47.

The square root of 56437859 is about 7512.5134941643. The cubic root of 56437859 is about 383.5807848208.

The spelling of 56437859 in words is "fifty-six million, four hundred thirty-seven thousand, eight hundred fifty-nine".