25704228 has 24 divisors (see below), whose sum is σ = 65429280. Its totient is φ = 7789120.

The previous prime is 25704227. The next prime is 25704229. The reversal of 25704228 is 82240752.

It is an interprime number because it is at equal distance from previous prime (25704227) and next prime (25704229).

It is a junction number, because it is equal to n+sod(n) for n = 25704195 and 25704204.

It is not an unprimeable number, because it can be changed into a prime (25704227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97233 + ... + 97496.

It is an arithmetic number, because the mean of its divisors is an integer number (2726220).

Almost surely, 2^25704228 is an apocalyptic number.

It is an amenable number.

25704228 is an abundant number, since it is smaller than the sum of its proper divisors (39725052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25704228 is a wasteful number, since it uses less digits than its factorization.

25704228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194747 (or 194745 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 25704228 is about 5069.9337273775. The cubic root of 25704228 is about 295.1219566607.

The spelling of 25704228 in words is "twenty-five million, seven hundred four thousand, two hundred twenty-eight".