25303032220 has 24 divisors (see below), whose sum is σ = 56262037104. Its totient is φ = 9525847296.

The previous prime is 25303032191. The next prime is 25303032239. The reversal of 25303032220 is 2223030352.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25303032191 and 25303032200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37210002 + ... + 37210681.

It is an arithmetic number, because the mean of its divisors is an integer number (2344251546).

Almost surely, 2^25303032220 is an apocalyptic number.

25303032220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25303032220 is an abundant number, since it is smaller than the sum of its proper divisors (30959004884).

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

25303032220 is a wasteful number, since it uses less digits than its factorization.

25303032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74420709 (or 74420707 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

Adding to 25303032220 its reverse (2223030352), we get a palindrome (27526062572).

The spelling of 25303032220 in words is "twenty-five billion, three hundred three million, thirty-two thousand, two hundred twenty".