25312310320 has 40 divisors (see below), whose sum is σ = 64201225680. Its totient is φ = 9204476160.

The previous prime is 25312310279. The next prime is 25312310329. The reversal of 25312310320 is 2301321352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 25312310291 and 25312310300.

It is not an unprimeable number, because it can be changed into a prime (25312310329) by changing a digit.

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, 14381115 + ... + 14382874.

It is an arithmetic number, because the mean of its divisors is an integer number (1605030642).

Almost surely, 2^25312310320 is an apocalyptic number.

25312310320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25312310320 is an abundant number, since it is smaller than the sum of its proper divisors (38888915360).

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

25312310320 is a wasteful number, since it uses less digits than its factorization.

25312310320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28764013 (or 28764007 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 25312310320 its reverse (2301321352), we get a palindrome (27613631672).

The spelling of 25312310320 in words is "twenty-five billion, three hundred twelve million, three hundred ten thousand, three hundred twenty".