56213159 has 2 divisors, whose sum is σ = 56213160. Its totient is φ = 56213158.

The previous prime is 56213141. The next prime is 56213221. The reversal of 56213159 is 95131265.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56213159 - 2¹² = 56209063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56213119) 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 as a sum of consecutive naturals, namely, 28106579 + 28106580.

It is an arithmetic number, because the mean of its divisors is an integer number (28106580).

Almost surely, 2^56213159 is an apocalyptic number.

56213159 is a deficient number, since it is larger than the sum of its proper divisors (1).

56213159 is an equidigital number, since it uses as much as digits as its factorization.

56213159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 32.

The square root of 56213159 is about 7497.5435310507. The cubic root of 56213159 is about 383.0710487257.

The spelling of 56213159 in words is "fifty-six million, two hundred thirteen thousand, one hundred fifty-nine".