56326389 has 24 divisors (see below), whose sum is σ = 91186368. Its totient is φ = 30289920.

The previous prime is 56326367. The next prime is 56326397. The reversal of 56326389 is 98362365.

It is not a de Polignac number, because 56326389 - 2⁸ = 56326133 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56326389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56326189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1429 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (3799432).

Almost surely, 2^56326389 is an apocalyptic number.

It is an amenable number.

56326389 is a deficient number, since it is larger than the sum of its proper divisors (34859979).

56326389 is a wasteful number, since it uses less digits than its factorization.

56326389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325 (or 9308 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 56326389 is about 7505.0908722013. The cubic root of 56326389 is about 383.3280825158.

It can be divided in two parts, 5632 and 6389, that added together give a palindrome (12021).

The spelling of 56326389 in words is "fifty-six million, three hundred twenty-six thousand, three hundred eighty-nine".