2551231339 has 2 divisors, whose sum is σ = 2551231340. Its totient is φ = 2551231338.

The previous prime is 2551231313. The next prime is 2551231343. The reversal of 2551231339 is 9331321552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2551231339 - 2¹⁹ = 2550707051 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551231349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275615669 + 1275615670.

It is an arithmetic number, because the mean of its divisors is an integer number (1275615670).

Almost surely, 2^2551231339 is an apocalyptic number.

2551231339 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551231339 is an equidigital number, since it uses as much as digits as its factorization.

2551231339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 34.

The square root of 2551231339 is about 50509.7152931988. The cubic root of 2551231339 is about 1366.4170748711.

The spelling of 2551231339 in words is "two billion, five hundred fifty-one million, two hundred thirty-one thousand, three hundred thirty-nine".