255175397 has 4 divisors (see below), whose sum is σ = 256800876. Its totient is φ = 253549920.

The previous prime is 255175391. The next prime is 255175433. The reversal of 255175397 is 793571552.

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 106481761 + 148693636 = 10319^2 + 12194^2 .

It is a cyclic number.

It is not a de Polignac number, because 255175397 - 2⁴ = 255175381 is a prime.

It is a super-2 number, since 2×255175397² = 130228966468215218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255175391) 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 3 ways as a sum of consecutive naturals, for example, 812504 + ... + 812817.

It is an arithmetic number, because the mean of its divisors is an integer number (64200219).

Almost surely, 2^255175397 is an apocalyptic number.

It is an amenable number.

255175397 is a deficient number, since it is larger than the sum of its proper divisors (1625479).

255175397 is a wasteful number, since it uses less digits than its factorization.

255175397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625478.

The product of its digits is 330750, while the sum is 44.

The square root of 255175397 is about 15974.2103717210. The cubic root of 255175397 is about 634.2779293083.

The spelling of 255175397 in words is "two hundred fifty-five million, one hundred seventy-five thousand, three hundred ninety-seven".