56137727 has 2 divisors, whose sum is σ = 56137728. Its totient is φ = 56137726.

The previous prime is 56137709. The next prime is 56137771. The reversal of 56137727 is 72773165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56137727 - 2⁶ = 56137663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56137777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28068863 + 28068864.

It is an arithmetic number, because the mean of its divisors is an integer number (28068864).

Almost surely, 2^56137727 is an apocalyptic number.

56137727 is a deficient number, since it is larger than the sum of its proper divisors (1).

56137727 is an equidigital number, since it uses as much as digits as its factorization.

56137727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 38.

The square root of 56137727 is about 7492.5113947194. The cubic root of 56137727 is about 382.8996253406.

The spelling of 56137727 in words is "fifty-six million, one hundred thirty-seven thousand, seven hundred twenty-seven".