255679730239 has 2 divisors, whose sum is σ = 255679730240. Its totient is φ = 255679730238.

The previous prime is 255679730129. The next prime is 255679730279. The reversal of 255679730239 is 932037976552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255679730239 - 2³⁷ = 118240776767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255679730279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127839865119 + 127839865120.

It is an arithmetic number, because the mean of its divisors is an integer number (127839865120).

Almost surely, 2^255679730239 is an apocalyptic number.

255679730239 is a deficient number, since it is larger than the sum of its proper divisors (1).

255679730239 is an equidigital number, since it uses as much as digits as its factorization.

255679730239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21432600, while the sum is 58.

The spelling of 255679730239 in words is "two hundred fifty-five billion, six hundred seventy-nine million, seven hundred thirty thousand, two hundred thirty-nine".