25253197 has 4 divisors (see below), whose sum is σ = 25264800. Its totient is φ = 25241596.

The previous prime is 25253167. The next prime is 25253213. The reversal of 25253197 is 79135252.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25253197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25253117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447 + ... + 7252.

It is an arithmetic number, because the mean of its divisors is an integer number (6316200).

Almost surely, 2^25253197 is an apocalyptic number.

It is an amenable number.

25253197 is a deficient number, since it is larger than the sum of its proper divisors (11603).

25253197 is an equidigital number, since it uses as much as digits as its factorization.

25253197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11602.

The product of its digits is 18900, while the sum is 34.

The square root of 25253197 is about 5025.2559138814. The cubic root of 25253197 is about 293.3855966048.

The spelling of 25253197 in words is "twenty-five million, two hundred fifty-three thousand, one hundred ninety-seven".