25200324220 has 12 divisors (see below), whose sum is σ = 52920680904. Its totient is φ = 10080129680.

The previous prime is 25200324203. The next prime is 25200324239. The reversal of 25200324220 is 2242300252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25200324191 and 25200324200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630008086 + ... + 630008125.

It is an arithmetic number, because the mean of its divisors is an integer number (4410056742).

Almost surely, 2^25200324220 is an apocalyptic number.

25200324220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25200324220 is an abundant number, since it is smaller than the sum of its proper divisors (27720356684).

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

25200324220 is a wasteful number, since it uses less digits than its factorization.

25200324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260016220 (or 1260016218 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 25200324220 its reverse (2242300252), we get a palindrome (27442624472).

It can be divided in two parts, 2520032 and 4220, that added together give a palindrome (2524252).

The spelling of 25200324220 in words is "twenty-five billion, two hundred million, three hundred twenty-four thousand, two hundred twenty".