25388268 has 12 divisors (see below), whose sum is σ = 59239320. Its totient is φ = 8462752.

The previous prime is 25388263. The next prime is 25388281. The reversal of 25388268 is 86288352.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25388263) 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, 1057833 + ... + 1057856.

It is an arithmetic number, because the mean of its divisors is an integer number (4936610).

Almost surely, 2^25388268 is an apocalyptic number.

It is an amenable number.

25388268 is an abundant number, since it is smaller than the sum of its proper divisors (33851052).

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

25388268 is a wasteful number, since it uses less digits than its factorization.

25388268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115696 (or 2115694 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 25388268 is about 5038.6772073631. The cubic root of 25388268 is about 293.9077409623.

The spelling of 25388268 in words is "twenty-five million, three hundred eighty-eight thousand, two hundred sixty-eight".