56381159 has 2 divisors, whose sum is σ = 56381160. Its totient is φ = 56381158.

The previous prime is 56381123. The next prime is 56381161. The reversal of 56381159 is 95118365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56381159 - 2⁸ = 56380903 is a prime.

Together with 56381161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56381659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28190579 + 28190580.

It is an arithmetic number, because the mean of its divisors is an integer number (28190580).

Almost surely, 2^56381159 is an apocalyptic number.

56381159 is a deficient number, since it is larger than the sum of its proper divisors (1).

56381159 is an equidigital number, since it uses as much as digits as its factorization.

56381159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 38.

The square root of 56381159 is about 7508.7388421758. The cubic root of 56381159 is about 383.4522876365.

The spelling of 56381159 in words is "fifty-six million, three hundred eighty-one thousand, one hundred fifty-nine".