25314512512 has 32 divisors (see below), whose sum is σ = 51122113380. Its totient is φ = 12483864576.

The previous prime is 25314512501. The next prime is 25314512513. The reversal of 25314512512 is 21521541352.

It can be written as a sum of positive squares in 2 ways, for example, as 24403438656 + 911073856 = 156216^2 + 30184^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (25314512513) 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 3 ways as a sum of consecutive naturals, for example, 1345243 + ... + 1363930.

Almost surely, 2^25314512512 is an apocalyptic number.

It is an amenable number.

25314512512 is an abundant number, since it is smaller than the sum of its proper divisors (25807600868).

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

25314512512 is an equidigital number, since it uses as much as digits as its factorization.

25314512512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709260 (or 2709248 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The spelling of 25314512512 in words is "twenty-five billion, three hundred fourteen million, five hundred twelve thousand, five hundred twelve".