172725 has 36 divisors (see below), whose sum is σ = 339264. Its totient is φ = 77280.

The previous prime is 172721. The next prime is 172741. The reversal of 172725 is 527271.

172725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172725 - 2² = 172721 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 172695 and 172704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3652 + ... + 3698.

It is an arithmetic number, because the mean of its divisors is an integer number (9424).

2¹⁷²⁷²⁵ is an apocalyptic number.

172725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172725 is a deficient number, since it is larger than the sum of its proper divisors (166539).

172725 is a wasteful number, since it uses less digits than its factorization.

172725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 62 counting only the distinct ones).

The product of its digits is 980, while the sum is 24.

The square root of 172725 is about 415.6019730463. The cubic root of 172725 is about 55.6910065233.

Adding to 172725 its reverse (527271), we get a palindrome (699996).

The spelling of 172725 in words is "one hundred seventy-two thousand, seven hundred twenty-five".