172725625 has 20 divisors (see below), whose sum is σ = 220891792. Its totient is φ = 134946000.

The previous prime is 172725613. The next prime is 172725629. The reversal of 172725625 is 526527271.

It is a de Polignac number, because none of the positive numbers 2^k-172725625 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172725629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23662 + ... + 30088.

Almost surely, 2^172725625 is an apocalyptic number.

It is an amenable number.

172725625 is a deficient number, since it is larger than the sum of its proper divisors (48166167).

172725625 is an frugal number, since it uses more digits than its factorization.

172725625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490 (or 6475 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 172725625 is about 13142.5121266826. The cubic root of 172725625 is about 556.9107369525.

The spelling of 172725625 in words is "one hundred seventy-two million, seven hundred twenty-five thousand, six hundred twenty-five".