56251589 has 4 divisors (see below), whose sum is σ = 59560524. Its totient is φ = 52942656.

The previous prime is 56251579. The next prime is 56251597. The reversal of 56251589 is 98515265.

56251589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98515265 = 5 ⋅19703053.

It can be written as a sum of positive squares in 2 ways, for example, as 31550689 + 24700900 = 5617^2 + 4970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56251589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56251519) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1654442 + ... + 1654475.

It is an arithmetic number, because the mean of its divisors is an integer number (14890131).

Almost surely, 2^56251589 is an apocalyptic number.

It is an amenable number.

56251589 is a deficient number, since it is larger than the sum of its proper divisors (3308935).

56251589 is a wasteful number, since it uses less digits than its factorization.

56251589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308934.

The product of its digits is 108000, while the sum is 41.

The square root of 56251589 is about 7500.1059325852. The cubic root of 56251589 is about 383.1583240611.

The spelling of 56251589 in words is "fifty-six million, two hundred fifty-one thousand, five hundred eighty-nine".