25451543325212 has 24 divisors (see below), whose sum is σ = 44602734262800. Its totient is φ = 12707906714496.

The previous prime is 25451543325151. The next prime is 25451543325287. The reversal of 25451543325212 is 21252334515452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60960464 + ... + 61376552.

It is an arithmetic number, because the mean of its divisors is an integer number (1858447260950).

Almost surely, 2^{25451543325212} is an apocalyptic number.

It is an amenable number.

25451543325212 is a deficient number, since it is larger than the sum of its proper divisors (19151190937588).

25451543325212 is a wasteful number, since it uses less digits than its factorization.

25451543325212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437525 (or 437523 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 44.

The spelling of 25451543325212 in words is "twenty-five trillion, four hundred fifty-one billion, five hundred forty-three million, three hundred twenty-five thousand, two hundred twelve".