172069925 has 6 divisors (see below), whose sum is σ = 213366738. Its totient is φ = 137655920.

The previous prime is 172069889. The next prime is 172069951. The reversal of 172069925 is 529960271.

It can be written as a sum of positive squares in 3 ways, for example, as 11464996 + 160604929 = 3386^2 + 12673^2 .

It is not a de Polignac number, because 172069925 - 2⁸ = 172069669 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 5 ways as a sum of consecutive naturals, for example, 3441374 + ... + 3441423.

It is an arithmetic number, because the mean of its divisors is an integer number (35561123).

Almost surely, 2^172069925 is an apocalyptic number.

It is an amenable number.

172069925 is a deficient number, since it is larger than the sum of its proper divisors (41296813).

172069925 is an equidigital number, since it uses as much as digits as its factorization.

172069925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882807 (or 6882802 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 172069925 is about 13117.5426433460. The cubic root of 172069925 is about 556.2051295708.

The spelling of 172069925 in words is "one hundred seventy-two million, sixty-nine thousand, nine hundred twenty-five".