25212800 has 48 divisors (see below), whose sum is σ = 62291400. Its totient is φ = 10083840.

The previous prime is 25212797. The next prime is 25212809. The reversal of 25212800 is 821252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25212809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740 + ... + 7139.

Almost surely, 2^25212800 is an apocalyptic number.

25212800 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 25212800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31145700).

25212800 is an abundant number, since it is smaller than the sum of its proper divisors (37078600).

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

25212800 is an equidigital number, since it uses as much as digits as its factorization.

25212800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7903 (or 7886 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 25212800 is about 5021.2349078688. The cubic root of 25212800 is about 293.2290722208.

The spelling of 25212800 in words is "twenty-five million, two hundred twelve thousand, eight hundred".