25205717030012 has 48 divisors (see below), whose sum is σ = 45464206072320. Its totient is φ = 12221570769408.

The previous prime is 25205717029993. The next prime is 25205717030017. The reversal of 25205717030012 is 21003071750252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25205717030017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50563493 + ... + 51059555.

It is an arithmetic number, because the mean of its divisors is an integer number (947170959840).

Almost surely, 2^{25205717030012} is an apocalyptic number.

It is an amenable number.

25205717030012 is a deficient number, since it is larger than the sum of its proper divisors (20258489042308).

25205717030012 is a wasteful number, since it uses less digits than its factorization.

25205717030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498902 (or 498900 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

Adding to 25205717030012 its reverse (21003071750252), we get a palindrome (46208788780264).

The spelling of 25205717030012 in words is "twenty-five trillion, two hundred five billion, seven hundred seventeen million, thirty thousand, twelve".