172072325 has 12 divisors (see below), whose sum is σ = 213938688. Its totient is φ = 137290800.

The previous prime is 172072319. The next prime is 172072331. The reversal of 172072325 is 523270271.

It is an interprime number because it is at equal distance from previous prime (172072319) and next prime (172072331).

It is not a de Polignac number, because 172072325 - 2⁴ = 172072309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590 + ... + 18560.

It is an arithmetic number, because the mean of its divisors is an integer number (17828224).

Almost surely, 2^172072325 is an apocalyptic number.

It is an amenable number.

172072325 is a deficient number, since it is larger than the sum of its proper divisors (41866363).

172072325 is a wasteful number, since it uses less digits than its factorization.

172072325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18364 (or 18359 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 172072325 is about 13117.6341235758. The cubic root of 172072325 is about 556.2077155081.

The spelling of 172072325 in words is "one hundred seventy-two million, seventy-two thousand, three hundred twenty-five".