255480074957 has 4 divisors (see below), whose sum is σ = 255481899420. Its totient is φ = 255478250496.

The previous prime is 255480074929. The next prime is 255480074959. The reversal of 255480074957 is 759470084552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35349264196 + 220130810761 = 188014^2 + 469181^2 .

It is a cyclic number.

It is not a de Polignac number, because 255480074957 - 2²⁰ = 255479026381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255480074959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682982 + ... + 988647.

It is an arithmetic number, because the mean of its divisors is an integer number (63870474855).

Almost surely, 2^255480074957 is an apocalyptic number.

It is an amenable number.

255480074957 is a deficient number, since it is larger than the sum of its proper divisors (1824463).

255480074957 is a wasteful number, since it uses less digits than its factorization.

255480074957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824462.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 255480074957 in words is "two hundred fifty-five billion, four hundred eighty million, seventy-four thousand, nine hundred fifty-seven".