25440520314112 has 36 divisors (see below), whose sum is σ = 50999610769380. Its totient is φ = 12665666736128.

The previous prime is 25440520314089. The next prime is 25440520314119. The reversal of 25440520314112 is 21141302504452.

It can be written as a sum of positive squares in 2 ways, for example, as 17052406855936 + 8388113458176 = 4129456^2 + 2896224^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25440520314119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213195787 + ... + 213315082.

It is an arithmetic number, because the mean of its divisors is an integer number (1416655854705).

Almost surely, 2^{25440520314112} is an apocalyptic number.

It is an amenable number.

25440520314112 is an abundant number, since it is smaller than the sum of its proper divisors (25559090455268).

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

25440520314112 is an equidigital number, since it uses as much as digits as its factorization.

25440520314112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426511118 (or 426511104 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 25440520314112 its reverse (21141302504452), we get a palindrome (46581822818564).

The spelling of 25440520314112 in words is "twenty-five trillion, four hundred forty billion, five hundred twenty million, three hundred fourteen thousand, one hundred twelve".