25342322320 has 80 divisors (see below), whose sum is σ = 67594602240. Its totient is φ = 8655708672.

The previous prime is 25342322287. The next prime is 25342322321. The reversal of 25342322320 is 2322324352.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (25342322321) 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, 61246 + ... + 233314.

It is an arithmetic number, because the mean of its divisors is an integer number (844932528).

Almost surely, 2^25342322320 is an apocalyptic number.

25342322320 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 25342322320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33797301120).

25342322320 is an abundant number, since it is smaller than the sum of its proper divisors (42252279920).

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

25342322320 is a wasteful number, since it uses less digits than its factorization.

25342322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172352 (or 172346 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 25342322320 its reverse (2322324352), we get a palindrome (27664646672).

The spelling of 25342322320 in words is "twenty-five billion, three hundred forty-two million, three hundred twenty-two thousand, three hundred twenty".