255170157 has 16 divisors (see below), whose sum is σ = 371500032. Its totient is φ = 154505520.

The previous prime is 255170147. The next prime is 255170161. The reversal of 255170157 is 751071552.

It is not a de Polignac number, because 255170157 - 2⁴ = 255170141 is a prime.

It is a super-2 number, since 2×255170157² = 130223618046809298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255170147) 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 15 ways as a sum of consecutive naturals, for example, 40878 + ... + 46704.

It is an arithmetic number, because the mean of its divisors is an integer number (23218752).

Almost surely, 2^255170157 is an apocalyptic number.

It is an amenable number.

255170157 is a deficient number, since it is larger than the sum of its proper divisors (116329875).

255170157 is a wasteful number, since it uses less digits than its factorization.

255170157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168.

The product of its (nonzero) digits is 12250, while the sum is 33.

The square root of 255170157 is about 15974.0463565122. The cubic root of 255170157 is about 634.2735876683.

The spelling of 255170157 in words is "two hundred fifty-five million, one hundred seventy thousand, one hundred fifty-seven".