25217448 has 16 divisors (see below), whose sum is σ = 63043680. Its totient is φ = 8405808.

The previous prime is 25217447. The next prime is 25217473. The reversal of 25217448 is 84471252.

It is not an unprimeable number, because it can be changed into a prime (25217447) 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, 525340 + ... + 525387.

It is an arithmetic number, because the mean of its divisors is an integer number (3940230).

Almost surely, 2^25217448 is an apocalyptic number.

It is an amenable number.

25217448 is an abundant number, since it is smaller than the sum of its proper divisors (37826232).

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

25217448 is a wasteful number, since it uses less digits than its factorization.

25217448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050736 (or 1050732 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 25217448 is about 5021.6977208908. The cubic root of 25217448 is about 293.2470901189.

The spelling of 25217448 in words is "twenty-five million, two hundred seventeen thousand, four hundred forty-eight".