25003220000 has 240 divisors, whose sum is σ = 69435273600. Its totient is φ = 8776320000.

The previous prime is 25003219979. The next prime is 25003220071. The reversal of 25003220000 is 2230052.

It is a super-2 number, since 2×25003220000² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6378041 + ... + 6381959.

It is an arithmetic number, because the mean of its divisors is an integer number (289313640).

Almost surely, 2^25003220000 is an apocalyptic number.

25003220000 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 25003220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34717636800).

25003220000 is an abundant number, since it is smaller than the sum of its proper divisors (44432053600).

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

25003220000 is a wasteful number, since it uses less digits than its factorization.

25003220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989 (or 3966 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

Adding to 25003220000 its reverse (2230052), we get a palindrome (25005450052).

The spelling of 25003220000 in words is "twenty-five billion, three million, two hundred twenty thousand".