56722339 has 2 divisors, whose sum is σ = 56722340. Its totient is φ = 56722338.

The previous prime is 56722327. The next prime is 56722361. The reversal of 56722339 is 93322765.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56722339 - 2⁹ = 56721827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56722298 and 56722307.

It is not a weakly prime, because it can be changed into another prime (56702339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28361169 + 28361170.

It is an arithmetic number, because the mean of its divisors is an integer number (28361170).

Almost surely, 2^56722339 is an apocalyptic number.

56722339 is a deficient number, since it is larger than the sum of its proper divisors (1).

56722339 is an equidigital number, since it uses as much as digits as its factorization.

56722339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 37.

The square root of 56722339 is about 7531.4234378370. The cubic root of 56722339 is about 384.2241958841.

The spelling of 56722339 in words is "fifty-six million, seven hundred twenty-two thousand, three hundred thirty-nine".