56453791 has 2 divisors, whose sum is σ = 56453792. Its totient is φ = 56453790.

The previous prime is 56453779. The next prime is 56453801. The reversal of 56453791 is 19735465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56453791 - 2²¹ = 54356639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56453701) 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, 28226895 + 28226896.

It is an arithmetic number, because the mean of its divisors is an integer number (28226896).

Almost surely, 2^56453791 is an apocalyptic number.

56453791 is a deficient number, since it is larger than the sum of its proper divisors (1).

56453791 is an equidigital number, since it uses as much as digits as its factorization.

56453791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 56453791 is about 7513.5737834934. The cubic root of 56453791 is about 383.6168754534.

The spelling of 56453791 in words is "fifty-six million, four hundred fifty-three thousand, seven hundred ninety-one".