25170263 has 2 divisors, whose sum is σ = 25170264. Its totient is φ = 25170262.

The previous prime is 25170227. The next prime is 25170287. The reversal of 25170263 is 36207152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25170263 - 2⁶ = 25170199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25170293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12585131 + 12585132.

It is an arithmetic number, because the mean of its divisors is an integer number (12585132).

Almost surely, 2^25170263 is an apocalyptic number.

25170263 is a deficient number, since it is larger than the sum of its proper divisors (1).

25170263 is an equidigital number, since it uses as much as digits as its factorization.

25170263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 25170263 is about 5016.9974088094. The cubic root of 25170263 is about 293.0640752596.

Adding to 25170263 its sum of digits (26), we get a square (25170289 = 5017²).

The spelling of 25170263 in words is "twenty-five million, one hundred seventy thousand, two hundred sixty-three".