5656637339 has 2 divisors, whose sum is σ = 5656637340. Its totient is φ = 5656637338.

The previous prime is 5656637323. The next prime is 5656637377. The reversal of 5656637339 is 9337366565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5656637339 - 2⁴ = 5656637323 is a prime.

It is not a weakly prime, because it can be changed into another prime (5656637039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828318669 + 2828318670.

It is an arithmetic number, because the mean of its divisors is an integer number (2828318670).

Almost surely, 2^5656637339 is an apocalyptic number.

5656637339 is a deficient number, since it is larger than the sum of its proper divisors (1).

5656637339 is an equidigital number, since it uses as much as digits as its factorization.

5656637339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9185400, while the sum is 53.

The square root of 5656637339 is about 75210.6198551774. The cubic root of 5656637339 is about 1781.7746618150.

The spelling of 5656637339 in words is "five billion, six hundred fifty-six million, six hundred thirty-seven thousand, three hundred thirty-nine".