25320131204 has 24 divisors (see below), whose sum is σ = 44399751480. Its totient is φ = 12634517504.

The previous prime is 25320131183. The next prime is 25320131209. The reversal of 25320131204 is 40213102352.

It can be written as a sum of positive squares in 4 ways, for example, as 7726761604 + 17593369600 = 87902^2 + 132640^2 .

It is a super-2 number, since 2×25320131204² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25320131204.

It is not an unprimeable number, because it can be changed into a prime (25320131209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4911092 + ... + 4916244.

It is an arithmetic number, because the mean of its divisors is an integer number (1849989645).

Almost surely, 2^25320131204 is an apocalyptic number.

It is an amenable number.

25320131204 is a deficient number, since it is larger than the sum of its proper divisors (19079620276).

25320131204 is a wasteful number, since it uses less digits than its factorization.

25320131204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 25320131204 its reverse (40213102352), we get a palindrome (65533233556).

The spelling of 25320131204 in words is "twenty-five billion, three hundred twenty million, one hundred thirty-one thousand, two hundred four".