25220433000 has 256 divisors, whose sum is σ = 90165104640. Its totient is φ = 5749536000.

The previous prime is 25220432989. The next prime is 25220433023. The reversal of 25220433000 is 33402252.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9301645 + ... + 9304355.

It is an arithmetic number, because the mean of its divisors is an integer number (352207440).

Almost surely, 2^25220433000 is an apocalyptic number.

25220433000 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 25220433000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45082552320).

25220433000 is an abundant number, since it is smaller than the sum of its proper divisors (64944671640).

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

25220433000 is a wasteful number, since it uses less digits than its factorization.

25220433000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

Adding to 25220433000 its reverse (33402252), we get a palindrome (25253835252).

The spelling of 25220433000 in words is "twenty-five billion, two hundred twenty million, four hundred thirty-three thousand".