56999743 has 2 divisors, whose sum is σ = 56999744. Its totient is φ = 56999742.

The previous prime is 56999729. The next prime is 56999749. The reversal of 56999743 is 34799965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56999743 - 2⁵ = 56999711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56999749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28499871 + 28499872.

It is an arithmetic number, because the mean of its divisors is an integer number (28499872).

Almost surely, 2^56999743 is an apocalyptic number.

56999743 is a deficient number, since it is larger than the sum of its proper divisors (1).

56999743 is an equidigital number, since it uses as much as digits as its factorization.

56999743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 52.

The square root of 56999743 is about 7549.8174150108. The cubic root of 56999743 is about 384.8495347263.

The spelling of 56999743 in words is "fifty-six million, nine hundred ninety-nine thousand, seven hundred forty-three".