25230285828 has 72 divisors (see below), whose sum is σ = 71818795776. Its totient is φ = 7398907200.

The previous prime is 25230285799. The next prime is 25230285929. The reversal of 25230285828 is 82858203252.

25230285828 is a `hidden beast` number, since 25 + 23 + 0 + 28 + 582 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1015351 + ... + 1039902.

Almost surely, 2^25230285828 is an apocalyptic number.

It is an amenable number.

25230285828 is an abundant number, since it is smaller than the sum of its proper divisors (46588509948).

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

25230285828 is a wasteful number, since it uses less digits than its factorization.

25230285828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055305 (or 2055300 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 25230285828 in words is "twenty-five billion, two hundred thirty million, two hundred eighty-five thousand, eight hundred twenty-eight".