56845889 has 4 divisors (see below), whose sum is σ = 58055424. Its totient is φ = 55636356.

The previous prime is 56845879. The next prime is 56845933. The reversal of 56845889 is 98854865.

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 56845889 - 2¹² = 56841793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56845889.

It is not an unprimeable number, because it can be changed into a prime (56845819) 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, 604697 + ... + 604790.

It is an arithmetic number, because the mean of its divisors is an integer number (14513856).

Almost surely, 2^56845889 is an apocalyptic number.

It is an amenable number.

56845889 is a deficient number, since it is larger than the sum of its proper divisors (1209535).

56845889 is a wasteful number, since it uses less digits than its factorization.

56845889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209534.

The product of its digits is 2764800, while the sum is 53.

The square root of 56845889 is about 7539.6212769608. The cubic root of 56845889 is about 384.5029600980.

The spelling of 56845889 in words is "fifty-six million, eight hundred forty-five thousand, eight hundred eighty-nine".