255304431041505 has 16 divisors (see below), whose sum is σ = 408720911740224. Its totient is φ = 136084422530880.

The previous prime is 255304431041503. The next prime is 255304431041579. The reversal of 255304431041505 is 505140134403552.

It is not a de Polignac number, because 255304431041505 - 2¹ = 255304431041503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255304431041503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4871266126 + ... + 4871318535.

It is an arithmetic number, because the mean of its divisors is an integer number (25545056983764).

Almost surely, 2^{255304431041505} is an apocalyptic number.

It is an amenable number.

255304431041505 is a deficient number, since it is larger than the sum of its proper divisors (153416480698719).

255304431041505 is a wasteful number, since it uses less digits than its factorization.

255304431041505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9742586416.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 255304431041505 in words is "two hundred fifty-five trillion, three hundred four billion, four hundred thirty-one million, forty-one thousand, five hundred five".