249568449265 has 8 divisors (see below), whose sum is σ = 299512037160. Its totient is φ = 199634827392.

The previous prime is 249568449257. The next prime is 249568449341. The reversal of 249568449265 is 562944865942.

It is a happy number.

249568449265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10722188304 + 238846260961 = 103548^2 + 488719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249568449265 - 2³ = 249568449257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249568449197 and 249568449206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436300 + ... + 2536669.

It is an arithmetic number, because the mean of its divisors is an integer number (37439004645).

Almost surely, 2^249568449265 is an apocalyptic number.

It is an amenable number.

249568449265 is a deficient number, since it is larger than the sum of its proper divisors (49943587895).

249568449265 is a wasteful number, since it uses less digits than its factorization.

249568449265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983011.

The product of its digits is 149299200, while the sum is 64.

The spelling of 249568449265 in words is "two hundred forty-nine billion, five hundred sixty-eight million, four hundred forty-nine thousand, two hundred sixty-five".