56722651 has 2 divisors, whose sum is σ = 56722652. Its totient is φ = 56722650.

The previous prime is 56722649. The next prime is 56722709. The reversal of 56722651 is 15622765.

56722651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56722651 - 2¹ = 56722649 is a prime.

Together with 56722649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56723651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28361325 + 28361326.

It is an arithmetic number, because the mean of its divisors is an integer number (28361326).

Almost surely, 2^56722651 is an apocalyptic number.

56722651 is a deficient number, since it is larger than the sum of its proper divisors (1).

56722651 is an equidigital number, since it uses as much as digits as its factorization.

56722651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 56722651 is about 7531.4441510244. Note that the first 3 decimals coincide. The cubic root of 56722651 is about 384.2249003551.

The spelling of 56722651 in words is "fifty-six million, seven hundred twenty-two thousand, six hundred fifty-one".