25003424220 has 96 divisors (see below), whose sum is σ = 74892299328. Its totient is φ = 6210650112.

The previous prime is 25003424219. The next prime is 25003424231. The reversal of 25003424220 is 2242430052.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27417 + ... + 225296.

It is an arithmetic number, because the mean of its divisors is an integer number (780128118).

Almost surely, 2^25003424220 is an apocalyptic number.

25003424220 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 25003424220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37446149664).

25003424220 is an abundant number, since it is smaller than the sum of its proper divisors (49888875108).

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

25003424220 is a wasteful number, since it uses less digits than its factorization.

25003424220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252839 (or 252837 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 25003424220 its reverse (2242430052), we get a palindrome (27245854272).

The spelling of 25003424220 in words is "twenty-five billion, three million, four hundred twenty-four thousand, two hundred twenty".