25228049 has 16 divisors (see below), whose sum is σ = 32126976. Its totient is φ = 19237200.

The previous prime is 25228039. The next prime is 25228087. The reversal of 25228049 is 94082252.

It is a cyclic number.

It is not a de Polignac number, because 25228049 - 2¹² = 25223953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25228019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134 + ... + 7104.

It is an arithmetic number, because the mean of its divisors is an integer number (2007936).

Almost surely, 2^25228049 is an apocalyptic number.

It is an amenable number.

25228049 is a deficient number, since it is larger than the sum of its proper divisors (6898927).

25228049 is a wasteful number, since it uses less digits than its factorization.

25228049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7036.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 25228049 is about 5022.7531295098. The cubic root of 25228049 is about 293.2881764452.

The spelling of 25228049 in words is "twenty-five million, two hundred twenty-eight thousand, forty-nine".