56913751 has 2 divisors, whose sum is σ = 56913752. Its totient is φ = 56913750.

The previous prime is 56913743. The next prime is 56913763. The reversal of 56913751 is 15731965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56913751 - 2³ = 56913743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56913751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56916751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28456875 + 28456876.

It is an arithmetic number, because the mean of its divisors is an integer number (28456876).

Almost surely, 2^56913751 is an apocalyptic number.

56913751 is a deficient number, since it is larger than the sum of its proper divisors (1).

56913751 is an equidigital number, since it uses as much as digits as its factorization.

56913751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 37.

The square root of 56913751 is about 7544.1202933145. The cubic root of 56913751 is about 384.6559043946.

The spelling of 56913751 in words is "fifty-six million, nine hundred thirteen thousand, seven hundred fifty-one".