56327729 has 2 divisors, whose sum is σ = 56327730. Its totient is φ = 56327728.

The previous prime is 56327717. The next prime is 56327731. The reversal of 56327729 is 92772365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 2704 = 7505^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 56327729 - 2¹² = 56323633 is a prime.

Together with 56327731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56327129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28163864 + 28163865.

It is an arithmetic number, because the mean of its divisors is an integer number (28163865).

Almost surely, 2^56327729 is an apocalyptic number.

It is an amenable number.

56327729 is a deficient number, since it is larger than the sum of its proper divisors (1).

56327729 is an equidigital number, since it uses as much as digits as its factorization.

56327729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 41.

The square root of 56327729 is about 7505.1801444069. The cubic root of 56327729 is about 383.3311222725.

The spelling of 56327729 in words is "fifty-six million, three hundred twenty-seven thousand, seven hundred twenty-nine".