25954445072 has 10 divisors (see below), whose sum is σ = 50286737358. Its totient is φ = 12977222528.

The previous prime is 25954445063. The next prime is 25954445087. The reversal of 25954445072 is 27054445952.

It can be written as a sum of positive squares in only one way, i.e., 19056145936 + 6898299136 = 138044^2 + 83056^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811076393 + ... + 811076424.

Almost surely, 2^25954445072 is an apocalyptic number.

It is an amenable number.

25954445072 is a deficient number, since it is larger than the sum of its proper divisors (24332292286).

25954445072 is a wasteful number, since it uses less digits than its factorization.

25954445072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622152825 (or 1622152819 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 25954445072 in words is "twenty-five billion, nine hundred fifty-four million, four hundred forty-five thousand, seventy-two".