25505667082 has 12 divisors (see below), whose sum is σ = 44504786610. Its totient is φ = 10931000136.

The previous prime is 25505667079. The next prime is 25505667097. The reversal of 25505667082 is 28076650552.

It can be written as a sum of positive squares in only one way, i.e., 17195339161 + 8310327921 = 131131^2 + 91161^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130130857 + ... + 130131052.

Almost surely, 2^25505667082 is an apocalyptic number.

25505667082 is a deficient number, since it is larger than the sum of its proper divisors (18999119528).

25505667082 is a wasteful number, since it uses less digits than its factorization.

25505667082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260261925 (or 260261918 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 25505667082 in words is "twenty-five billion, five hundred five million, six hundred sixty-seven thousand, eighty-two".