25125320 has 64 divisors (see below), whose sum is σ = 65318400. Its totient is φ = 8596480.

The previous prime is 25125313. The next prime is 25125329. The reversal of 25125320 is 2352152.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 25125292 and 25125301.

It is not an unprimeable number, because it can be changed into a prime (25125329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5801 + ... + 9159.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^25125320 is an apocalyptic number.

25125320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25125320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32659200).

25125320 is an abundant number, since it is smaller than the sum of its proper divisors (40193080).

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

25125320 is a wasteful number, since it uses less digits than its factorization.

25125320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25125320 is about 5012.5163341380. The cubic root of 25125320 is about 292.8895435668.

Adding to 25125320 its reverse (2352152), we get a palindrome (27477472).

The spelling of 25125320 in words is "twenty-five million, one hundred twenty-five thousand, three hundred twenty".