25228897 has 4 divisors (see below), whose sum is σ = 25421616. Its totient is φ = 25036180.

The previous prime is 25228871. The next prime is 25228913. The reversal of 25228897 is 79882252.

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 a de Polignac number, because none of the positive numbers 2^k-25228897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25228837) 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, 96163 + ... + 96424.

It is an arithmetic number, because the mean of its divisors is an integer number (6355404).

Almost surely, 2^25228897 is an apocalyptic number.

It is an amenable number.

25228897 is a deficient number, since it is larger than the sum of its proper divisors (192719).

25228897 is a wasteful number, since it uses less digits than its factorization.

25228897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192718.

The product of its digits is 161280, while the sum is 43.

The square root of 25228897 is about 5022.8375446554. The cubic root of 25228897 is about 293.2914625440.

The spelling of 25228897 in words is "twenty-five million, two hundred twenty-eight thousand, eight hundred ninety-seven".