255442172 has 12 divisors (see below), whose sum is σ = 448977480. Its totient is φ = 127162896.

The previous prime is 255442157. The next prime is 255442181. The reversal of 255442172 is 271244552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138518 + ... + 140349.

It is an arithmetic number, because the mean of its divisors is an integer number (37414790).

Almost surely, 2^255442172 is an apocalyptic number.

It is an amenable number.

255442172 is a deficient number, since it is larger than the sum of its proper divisors (193535308).

255442172 is a wasteful number, since it uses less digits than its factorization.

255442172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279100 (or 279098 counting only the distinct ones).

The product of its digits is 22400, while the sum is 32.

The square root of 255442172 is about 15982.5583684215. The cubic root of 255442172 is about 634.4988891705.

The spelling of 255442172 in words is "two hundred fifty-five million, four hundred forty-two thousand, one hundred seventy-two".