56939759 has 2 divisors, whose sum is σ = 56939760. Its totient is φ = 56939758.

The previous prime is 56939741. The next prime is 56939761. The reversal of 56939759 is 95793965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56939759 - 2⁸ = 56939503 is a prime.

Together with 56939761, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56939759.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56939059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28469879 + 28469880.

It is an arithmetic number, because the mean of its divisors is an integer number (28469880).

Almost surely, 2^56939759 is an apocalyptic number.

56939759 is a deficient number, since it is larger than the sum of its proper divisors (1).

56939759 is an equidigital number, since it uses as much as digits as its factorization.

56939759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 53.

The square root of 56939759 is about 7545.8438229266. The cubic root of 56939759 is about 384.7144878190.

The spelling of 56939759 in words is "fifty-six million, nine hundred thirty-nine thousand, seven hundred fifty-nine".