172272325 has 24 divisors (see below), whose sum is σ = 222842880. Its totient is φ = 131947200.

The previous prime is 172272311. The next prime is 172272329. The reversal of 172272325 is 523272271.

It is not a de Polignac number, because 172272325 - 2⁷ = 172272197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172272329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91140 + ... + 93010.

It is an arithmetic number, because the mean of its divisors is an integer number (9285120).

Almost surely, 2^172272325 is an apocalyptic number.

It is an amenable number.

172272325 is a deficient number, since it is larger than the sum of its proper divisors (50570555).

172272325 is a wasteful number, since it uses less digits than its factorization.

172272325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2032 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 172272325 is about 13125.2552356135. The cubic root of 172272325 is about 556.4231258444.

It can be divided in two parts, 1722 and 72325, that added together give a palindrome (74047).

The spelling of 172272325 in words is "one hundred seventy-two million, two hundred seventy-two thousand, three hundred twenty-five".