25228630 has 24 divisors (see below), whose sum is σ = 52826688. Its totient is φ = 8649648.

The previous prime is 25228591. The next prime is 25228657. The reversal of 25228630 is 3682252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25254 + ... + 26233.

It is an arithmetic number, because the mean of its divisors is an integer number (2201112).

Almost surely, 2^25228630 is an apocalyptic number.

25228630 is an abundant number, since it is smaller than the sum of its proper divisors (27598058).

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

25228630 is a wasteful number, since it uses less digits than its factorization.

25228630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51508 (or 51501 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 25228630 is about 5022.8109659831. The cubic root of 25228630 is about 293.2904278958.

It can be divided in two parts, 252 and 28630, that added together give a palindrome (28882).

The spelling of 25228630 in words is "twenty-five million, two hundred twenty-eight thousand, six hundred thirty".