25384872 has 16 divisors (see below), whose sum is σ = 63462240. Its totient is φ = 8461616.

The previous prime is 25384871. The next prime is 25384883. The reversal of 25384872 is 27848352.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 25384872.

It is not an unprimeable number, because it can be changed into a prime (25384871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528828 + ... + 528875.

It is an arithmetic number, because the mean of its divisors is an integer number (3966390).

Almost surely, 2^25384872 is an apocalyptic number.

It is an amenable number.

25384872 is an abundant number, since it is smaller than the sum of its proper divisors (38077368).

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

25384872 is a wasteful number, since it uses less digits than its factorization.

25384872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057712 (or 1057708 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 25384872 is about 5038.3402028843. The cubic root of 25384872 is about 293.8946357596.

The spelling of 25384872 in words is "twenty-five million, three hundred eighty-four thousand, eight hundred seventy-two".