172725255 has 24 divisors (see below), whose sum is σ = 299782080. Its totient is φ = 91999680.

The previous prime is 172725229. The next prime is 172725269. The reversal of 172725255 is 552527271.

It is not a de Polignac number, because 172725255 - 2⁷ = 172725127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40306 + ... + 44384.

It is an arithmetic number, because the mean of its divisors is an integer number (12490920).

Almost surely, 2^172725255 is an apocalyptic number.

172725255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172725255 is a deficient number, since it is larger than the sum of its proper divisors (127056825).

172725255 is a wasteful number, since it uses less digits than its factorization.

172725255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031 (or 5028 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 172725255 is about 13142.4980502186. The cubic root of 172725255 is about 556.9103392947.

It can be divided in two parts, 17 and 2725255, that added together give a palindrome (2725272).

The spelling of 172725255 in words is "one hundred seventy-two million, seven hundred twenty-five thousand, two hundred fifty-five".