56671339 has 2 divisors, whose sum is σ = 56671340. Its totient is φ = 56671338.

The previous prime is 56671301. The next prime is 56671343. The reversal of 56671339 is 93317665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56671339 - 2²¹ = 54574187 is a prime.

It is not a weakly prime, because it can be changed into another prime (56671369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28335669 + 28335670.

It is an arithmetic number, because the mean of its divisors is an integer number (28335670).

Almost surely, 2^56671339 is an apocalyptic number.

56671339 is a deficient number, since it is larger than the sum of its proper divisors (1).

56671339 is an equidigital number, since it uses as much as digits as its factorization.

56671339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 56671339 is about 7528.0368622902. The cubic root of 56671339 is about 384.1090072292.

The spelling of 56671339 in words is "fifty-six million, six hundred seventy-one thousand, three hundred thirty-nine".