25130173 has 2 divisors, whose sum is σ = 25130174. Its totient is φ = 25130172.

The previous prime is 25130167. The next prime is 25130201. The reversal of 25130173 is 37103152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25130169 + 4 = 5013^2 + 2^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25130173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25130143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565086 + 12565087.

It is an arithmetic number, because the mean of its divisors is an integer number (12565087).

Almost surely, 2^25130173 is an apocalyptic number.

It is an amenable number.

25130173 is a deficient number, since it is larger than the sum of its proper divisors (1).

25130173 is an equidigital number, since it uses as much as digits as its factorization.

25130173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 25130173 is about 5013.0003989627. Note that the first 3 decimals coincide. The cubic root of 25130173 is about 292.9083997306.

The spelling of 25130173 in words is "twenty-five million, one hundred thirty thousand, one hundred seventy-three".