255815561459 has 2 divisors, whose sum is σ = 255815561460. Its totient is φ = 255815561458.

The previous prime is 255815561437. The next prime is 255815561483. The reversal of 255815561459 is 954165518552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255815561459 - 2¹² = 255815557363 is a prime.

It is not a weakly prime, because it can be changed into another prime (255815561359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127907780729 + 127907780730.

It is an arithmetic number, because the mean of its divisors is an integer number (127907780730).

Almost surely, 2^255815561459 is an apocalyptic number.

255815561459 is a deficient number, since it is larger than the sum of its proper divisors (1).

255815561459 is an equidigital number, since it uses as much as digits as its factorization.

255815561459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800000, while the sum is 56.

The spelling of 255815561459 in words is "two hundred fifty-five billion, eight hundred fifteen million, five hundred sixty-one thousand, four hundred fifty-nine".