25403324412 has 12 divisors (see below), whose sum is σ = 59274423656. Its totient is φ = 8467774800.

The previous prime is 25403324407. The next prime is 25403324413. The reversal of 25403324412 is 21442330452.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 25403324412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25403324413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058471839 + ... + 1058471862.

Almost surely, 2^25403324412 is an apocalyptic number.

It is an amenable number.

25403324412 is an abundant number, since it is smaller than the sum of its proper divisors (33871099244).

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

25403324412 is a wasteful number, since it uses less digits than its factorization.

25403324412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116943708 (or 2116943706 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 25403324412 its reverse (21442330452), we get a palindrome (46845654864).

The spelling of 25403324412 in words is "twenty-five billion, four hundred three million, three hundred twenty-four thousand, four hundred twelve".