172372255 has 8 divisors (see below), whose sum is σ = 225651024. Its totient is φ = 125361600.

The previous prime is 172372253. The next prime is 172372261. The reversal of 172372255 is 552273271.

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

It is not a de Polignac number, because 172372255 - 2¹ = 172372253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172372255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172372253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566966 + ... + 1567075.

It is an arithmetic number, because the mean of its divisors is an integer number (28206378).

Almost surely, 2^172372255 is an apocalyptic number.

172372255 is a deficient number, since it is larger than the sum of its proper divisors (53278769).

172372255 is a wasteful number, since it uses less digits than its factorization.

172372255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134057.

The product of its digits is 29400, while the sum is 34.

The square root of 172372255 is about 13129.0614668376. The cubic root of 172372255 is about 556.5306931609.

The spelling of 172372255 in words is "one hundred seventy-two million, three hundred seventy-two thousand, two hundred fifty-five".