56727533 has 2 divisors, whose sum is σ = 56727534. Its totient is φ = 56727532.

The previous prime is 56727511. The next prime is 56727553. The reversal of 56727533 is 33572765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52388644 + 4338889 = 7238^2 + 2083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56727533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56727553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28363766 + 28363767.

It is an arithmetic number, because the mean of its divisors is an integer number (28363767).

Almost surely, 2^56727533 is an apocalyptic number.

It is an amenable number.

56727533 is a deficient number, since it is larger than the sum of its proper divisors (1).

56727533 is an equidigital number, since it uses as much as digits as its factorization.

56727533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 38.

The square root of 56727533 is about 7531.7682518782. The cubic root of 56727533 is about 384.2359231835.

The spelling of 56727533 in words is "fifty-six million, seven hundred twenty-seven thousand, five hundred thirty-three".