56197239 has 16 divisors (see below), whose sum is σ = 86423040. Its totient is φ = 31816800.

The previous prime is 56197237. The next prime is 56197261. The reversal of 56197239 is 93279165.

56197239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56197239 - 2¹ = 56197237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56197239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56197237) 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 15 ways as a sum of consecutive naturals, for example, 9987 + ... + 14564.

It is an arithmetic number, because the mean of its divisors is an integer number (5401440).

Almost surely, 2^56197239 is an apocalyptic number.

56197239 is a deficient number, since it is larger than the sum of its proper divisors (30225801).

56197239 is a wasteful number, since it uses less digits than its factorization.

56197239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24670.

The product of its digits is 102060, while the sum is 42.

The square root of 56197239 is about 7496.4817748061. The cubic root of 56197239 is about 383.0348824199.

The spelling of 56197239 in words is "fifty-six million, one hundred ninety-seven thousand, two hundred thirty-nine".