25929670852 has 24 divisors (see below), whose sum is σ = 48052803960. Its totient is φ = 12200509440.

The previous prime is 25929670829. The next prime is 25929670891. The reversal of 25929670852 is 25807692952.

It can be written as a sum of positive squares in 4 ways, for example, as 488144836 + 25441526016 = 22094^2 + 159504^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25929670793 and 25929670802.

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 7 ways as a sum of consecutive naturals, for example, 565524 + ... + 609652.

It is an arithmetic number, because the mean of its divisors is an integer number (2002200165).

Almost surely, 2^25929670852 is an apocalyptic number.

It is an amenable number.

25929670852 is a deficient number, since it is larger than the sum of its proper divisors (22123133108).

25929670852 is a wasteful number, since it uses less digits than its factorization.

25929670852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52791 (or 52789 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 25929670852 in words is "twenty-five billion, nine hundred twenty-nine million, six hundred seventy thousand, eight hundred fifty-two".