56916851 has 2 divisors, whose sum is σ = 56916852. Its totient is φ = 56916850.

The previous prime is 56916823. The next prime is 56916869. The reversal of 56916851 is 15861965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56916851 - 2¹⁸ = 56654707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56916799 and 56916808.

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, 28458425 + 28458426.

It is an arithmetic number, because the mean of its divisors is an integer number (28458426).

Almost surely, 2^56916851 is an apocalyptic number.

56916851 is a deficient number, since it is larger than the sum of its proper divisors (1).

56916851 is an equidigital number, since it uses as much as digits as its factorization.

56916851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 41.

The square root of 56916851 is about 7544.3257485345. The cubic root of 56916851 is about 384.6628881296.

The spelling of 56916851 in words is "fifty-six million, nine hundred sixteen thousand, eight hundred fifty-one".