25248320 has 28 divisors (see below), whose sum is σ = 60123324. Its totient is φ = 10099200.

The previous prime is 25248317. The next prime is 25248323. The reversal of 25248320 is 2384252.

It is an interprime number because it is at equal distance from previous prime (25248317) and next prime (25248323).

It can be written as a sum of positive squares in 2 ways, for example, as 8667136 + 16581184 = 2944^2 + 4072^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25248320.

It is not an unprimeable number, because it can be changed into a prime (25248323) 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, 39131 + ... + 39770.

Almost surely, 2^25248320 is an apocalyptic number.

25248320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25248320 is an abundant number, since it is smaller than the sum of its proper divisors (34875004).

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

25248320 is an equidigital number, since it uses as much as digits as its factorization.

25248320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78918 (or 78908 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 25248320 is about 5024.7706415318. The cubic root of 25248320 is about 293.3667087827.

The spelling of 25248320 in words is "twenty-five million, two hundred forty-eight thousand, three hundred twenty".