25505945039472 has 40 divisors (see below), whose sum is σ = 65925424967040. Its totient is φ = 8497456912320.

The previous prime is 25505945039467. The next prime is 25505945039527. The reversal of 25505945039472 is 27493054950552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141307854 + ... + 141488237.

It is an arithmetic number, because the mean of its divisors is an integer number (1648135624176).

Almost surely, 2^{25505945039472} is an apocalyptic number.

It is an amenable number.

25505945039472 is an abundant number, since it is smaller than the sum of its proper divisors (40419479927568).

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

25505945039472 is a wasteful number, since it uses less digits than its factorization.

25505945039472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282797981 (or 282797975 counting only the distinct ones).

The product of its (nonzero) digits is 68040000, while the sum is 60.

The spelling of 25505945039472 in words is "twenty-five trillion, five hundred five billion, nine hundred forty-five million, thirty-nine thousand, four hundred seventy-two".