25650264650 has 12 divisors (see below), whose sum is σ = 47709492342. Its totient is φ = 10260105840.

The previous prime is 25650264599. The next prime is 25650264707. The reversal of 25650264650 is 5646205652.

It is a Cunningham number, because it is equal to 160157²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 23639370001 + 2010894649 = 153751^2 + 44843^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25650264598 and 25650264607.

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 5 ways as a sum of consecutive naturals, for example, 256502597 + ... + 256502696.

Almost surely, 2^25650264650 is an apocalyptic number.

25650264650 is a deficient number, since it is larger than the sum of its proper divisors (22059227692).

25650264650 is a wasteful number, since it uses less digits than its factorization.

25650264650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513005305 (or 513005300 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 25650264650 in words is "twenty-five billion, six hundred fifty million, two hundred sixty-four thousand, six hundred fifty".