56033591 has 2 divisors, whose sum is σ = 56033592. Its totient is φ = 56033590.

The previous prime is 56033569. The next prime is 56033611. The reversal of 56033591 is 19533065.

56033591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56033591 - 2²² = 51839287 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 (56033531) 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 as a sum of consecutive naturals, namely, 28016795 + 28016796.

It is an arithmetic number, because the mean of its divisors is an integer number (28016796).

Almost surely, 2^56033591 is an apocalyptic number.

56033591 is a deficient number, since it is larger than the sum of its proper divisors (1).

56033591 is an equidigital number, since it uses as much as digits as its factorization.

56033591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 56033591 is about 7485.5588301743. The cubic root of 56033591 is about 382.6627180159.

The spelling of 56033591 in words is "fifty-six million, thirty-three thousand, five hundred ninety-one".