25645204310312 has 16 divisors (see below), whose sum is σ = 48089601090900. Its totient is φ = 12821310686080.

The previous prime is 25645204310273. The next prime is 25645204310329. The reversal of 25645204310312 is 21301340254652.

It can be written as a sum of positive squares in 2 ways, for example, as 24666976495396 + 978227814916 = 4966586^2 + 989054^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161349239 + ... + 161508102.

Almost surely, 2^{25645204310312} is an apocalyptic number.

It is an amenable number.

25645204310312 is a deficient number, since it is larger than the sum of its proper divisors (22444396780588).

25645204310312 is a wasteful number, since it uses less digits than its factorization.

25645204310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322867276 (or 322867272 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 25645204310312 its reverse (21301340254652), we get a palindrome (46946544564964).

The spelling of 25645204310312 in words is "twenty-five trillion, six hundred forty-five billion, two hundred four million, three hundred ten thousand, three hundred twelve".