255751257 has 8 divisors (see below), whose sum is σ = 341099200. Its totient is φ = 170452080.

The previous prime is 255751219. The next prime is 255751259. The reversal of 255751257 is 752157552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255751257 - 2¹⁰ = 255750233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255751259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619 + ... + 22767.

It is an arithmetic number, because the mean of its divisors is an integer number (42637400).

Almost surely, 2^255751257 is an apocalyptic number.

It is an amenable number.

255751257 is a deficient number, since it is larger than the sum of its proper divisors (85347943).

255751257 is a wasteful number, since it uses less digits than its factorization.

255751257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24383.

The product of its digits is 122500, while the sum is 39.

The square root of 255751257 is about 15992.2248921155. The cubic root of 255751257 is about 634.7547005497.

The spelling of 255751257 in words is "two hundred fifty-five million, seven hundred fifty-one thousand, two hundred fifty-seven".