255177261257 has 16 divisors (see below), whose sum is σ = 261361605120. Its totient is φ = 249025093632.

The previous prime is 255177261239. The next prime is 255177261277. The reversal of 255177261257 is 752162771552.

It is a cyclic number.

It is not a de Polignac number, because 255177261257 - 2¹² = 255177257161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255177261277) 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, 54721508 + ... + 54726170.

It is an arithmetic number, because the mean of its divisors is an integer number (16335100320).

Almost surely, 2^255177261257 is an apocalyptic number.

It is an amenable number.

255177261257 is a deficient number, since it is larger than the sum of its proper divisors (6184343863).

255177261257 is a wasteful number, since it uses less digits than its factorization.

255177261257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832.

The product of its digits is 2058000, while the sum is 50.

The spelling of 255177261257 in words is "two hundred fifty-five billion, one hundred seventy-seven million, two hundred sixty-one thousand, two hundred fifty-seven".