25120343320 has 64 divisors (see below), whose sum is σ = 59191715520. Its totient is φ = 9576466944.

The previous prime is 25120343317. The next prime is 25120343323. The reversal of 25120343320 is 2334302152.

It is an interprime number because it is at equal distance from previous prime (25120343317) and next prime (25120343323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25120343323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205554 + ... + 304126.

It is an arithmetic number, because the mean of its divisors is an integer number (924870555).

Almost surely, 2^25120343320 is an apocalyptic number.

25120343320 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 25120343320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29595857760).

25120343320 is an abundant number, since it is smaller than the sum of its proper divisors (34071372200).

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

25120343320 is a wasteful number, since it uses less digits than its factorization.

25120343320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98884 (or 98880 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 25120343320 its reverse (2334302152), we get a palindrome (27454645472).

The spelling of 25120343320 in words is "twenty-five billion, one hundred twenty million, three hundred forty-three thousand, three hundred twenty".