56051857 has 2 divisors, whose sum is σ = 56051858. Its totient is φ = 56051856.

The previous prime is 56051837. The next prime is 56051861. The reversal of 56051857 is 75815065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31539456 + 24512401 = 5616^2 + 4951^2 .

It is a cyclic number.

It is not a de Polignac number, because 56051857 - 2¹¹ = 56049809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56051837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28025928 + 28025929.

It is an arithmetic number, because the mean of its divisors is an integer number (28025929).

Almost surely, 2^56051857 is an apocalyptic number.

It is an amenable number.

56051857 is a deficient number, since it is larger than the sum of its proper divisors (1).

56051857 is an equidigital number, since it uses as much as digits as its factorization.

56051857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 56051857 is about 7486.7788133482. The cubic root of 56051857 is about 382.7042940165.

The spelling of 56051857 in words is "fifty-six million, fifty-one thousand, eight hundred fifty-seven".