255616502539 has 2 divisors, whose sum is σ = 255616502540. Its totient is φ = 255616502538.

The previous prime is 255616502513. The next prime is 255616502543. The reversal of 255616502539 is 935205616552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255616502539 - 2¹⁷ = 255616371467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255616502492 and 255616502501.

It is not a weakly prime, because it can be changed into another prime (255616502579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127808251269 + 127808251270.

It is an arithmetic number, because the mean of its divisors is an integer number (127808251270).

Almost surely, 2^255616502539 is an apocalyptic number.

255616502539 is a deficient number, since it is larger than the sum of its proper divisors (1).

255616502539 is an equidigital number, since it uses as much as digits as its factorization.

255616502539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430000, while the sum is 49.

The spelling of 255616502539 in words is "two hundred fifty-five billion, six hundred sixteen million, five hundred two thousand, five hundred thirty-nine".