25525173 has 4 divisors (see below), whose sum is σ = 34033568. Its totient is φ = 17016780.

The previous prime is 25525127. The next prime is 25525223. The reversal of 25525173 is 37152552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25525173 - 2¹² = 25521077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25525173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4254193 + ... + 4254198.

It is an arithmetic number, because the mean of its divisors is an integer number (8508392).

Almost surely, 2^25525173 is an apocalyptic number.

It is an amenable number.

25525173 is a deficient number, since it is larger than the sum of its proper divisors (8508395).

25525173 is an equidigital number, since it uses as much as digits as its factorization.

25525173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8508394.

The product of its digits is 10500, while the sum is 30.

The square root of 25525173 is about 5052.2443527605. The cubic root of 25525173 is about 294.4350885943.

The spelling of 25525173 in words is "twenty-five million, five hundred twenty-five thousand, one hundred seventy-three".