56159223 has 16 divisors (see below), whose sum is σ = 76396896. Its totient is φ = 36685440.

The previous prime is 56159189. The next prime is 56159227. The reversal of 56159223 is 32295165.

It is a de Polignac number, because none of the positive numbers 2^k-56159223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56159227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72265 + ... + 73037.

It is an arithmetic number, because the mean of its divisors is an integer number (4774806).

Almost surely, 2^56159223 is an apocalyptic number.

56159223 is a deficient number, since it is larger than the sum of its proper divisors (20237673).

56159223 is a wasteful number, since it uses less digits than its factorization.

56159223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234.

The product of its digits is 16200, while the sum is 33.

The square root of 56159223 is about 7493.9457564090. The cubic root of 56159223 is about 382.9484918245.

The spelling of 56159223 in words is "fifty-six million, one hundred fifty-nine thousand, two hundred twenty-three".