172268825 has 6 divisors (see below), whose sum is σ = 213613374. Its totient is φ = 137815040.

The previous prime is 172268813. The next prime is 172268851. The reversal of 172268825 is 528862271.

It can be written as a sum of positive squares in 3 ways, for example, as 55696 + 172213129 = 236^2 + 13123^2 .

It is not a de Polignac number, because 172268825 - 2¹⁴ = 172252441 is a prime.

It is a Duffinian 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, 3445352 + ... + 3445401.

It is an arithmetic number, because the mean of its divisors is an integer number (35602229).

Almost surely, 2^172268825 is an apocalyptic number.

It is an amenable number.

172268825 is a deficient number, since it is larger than the sum of its proper divisors (41344549).

172268825 is an equidigital number, since it uses as much as digits as its factorization.

172268825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890763 (or 6890758 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 172268825 is about 13125.1219041958. The cubic root of 172268825 is about 556.4193575971.

The spelling of 172268825 in words is "one hundred seventy-two million, two hundred sixty-eight thousand, eight hundred twenty-five".