56871937 has 2 divisors, whose sum is σ = 56871938. Its totient is φ = 56871936.

The previous prime is 56871931. The next prime is 56871943. The reversal of 56871937 is 73917865.

It is a balanced prime because it is at equal distance from previous prime (56871931) and next prime (56871943).

It can be written as a sum of positive squares in only one way, i.e., 30647296 + 26224641 = 5536^2 + 5121^2 .

It is a cyclic number.

It is not a de Polignac number, because 56871937 - 2¹⁹ = 56347649 is a prime.

It is not a weakly prime, because it can be changed into another prime (56871931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28435968 + 28435969.

It is an arithmetic number, because the mean of its divisors is an integer number (28435969).

Almost surely, 2^56871937 is an apocalyptic number.

It is an amenable number.

56871937 is a deficient number, since it is larger than the sum of its proper divisors (1).

56871937 is an equidigital number, since it uses as much as digits as its factorization.

56871937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 46.

The square root of 56871937 is about 7541.3484868424. The cubic root of 56871937 is about 384.5616802851.

The spelling of 56871937 in words is "fifty-six million, eight hundred seventy-one thousand, nine hundred thirty-seven".