25952197 has 4 divisors (see below), whose sum is σ = 25968096. Its totient is φ = 25936300.

The previous prime is 25952161. The next prime is 25952203. The reversal of 25952197 is 79125952.

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 a cyclic number.

It is not a de Polignac number, because 25952197 - 2¹¹ = 25950149 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 (25952107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5179 + ... + 8872.

It is an arithmetic number, because the mean of its divisors is an integer number (6492024).

Almost surely, 2^25952197 is an apocalyptic number.

It is an amenable number.

25952197 is a deficient number, since it is larger than the sum of its proper divisors (15899).

25952197 is a wasteful number, since it uses less digits than its factorization.

25952197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15898.

The product of its digits is 56700, while the sum is 40.

The square root of 25952197 is about 5094.3298872374. The cubic root of 25952197 is about 296.0679362265.

The spelling of 25952197 in words is "twenty-five million, nine hundred fifty-two thousand, one hundred ninety-seven".