25320331040 has 48 divisors (see below), whose sum is σ = 59853177720. Its totient is φ = 10122393600.

The previous prime is 25320331039. The next prime is 25320331081. The reversal of 25320331040 is 4013302352.

It can be written as a sum of positive squares in 4 ways, for example, as 8281728016 + 17038603024 = 91004^2 + 130532^2 .

It is a super-2 number, since 2×25320331040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25320330997 and 25320331015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244226 + ... + 332094.

Almost surely, 2^25320331040 is an apocalyptic number.

25320331040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25320331040 is an abundant number, since it is smaller than the sum of its proper divisors (34532846680).

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

25320331040 is a wasteful number, since it uses less digits than its factorization.

25320331040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89685 (or 89677 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 25320331040 its reverse (4013302352), we get a palindrome (29333633392).

The spelling of 25320331040 in words is "twenty-five billion, three hundred twenty million, three hundred thirty-one thousand, forty".