259969049 has 4 divisors (see below), whose sum is σ = 275261364. Its totient is φ = 244676736.

The previous prime is 259969027. The next prime is 259969057. The reversal of 259969049 is 940969952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 173106649 + 86862400 = 13157^2 + 9320^2 .

It is a cyclic number.

It is not a de Polignac number, because 259969049 - 2¹⁶ = 259903513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259969249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7646132 + ... + 7646165.

It is an arithmetic number, because the mean of its divisors is an integer number (68815341).

Almost surely, 2^259969049 is an apocalyptic number.

It is an amenable number.

259969049 is a deficient number, since it is larger than the sum of its proper divisors (15292315).

259969049 is a wasteful number, since it uses less digits than its factorization.

259969049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15292314.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The square root of 259969049 is about 16123.5557182651. Note that the first 3 decimals coincide. The cubic root of 259969049 is about 638.2251026129.

The spelling of 259969049 in words is "two hundred fifty-nine million, nine hundred sixty-nine thousand, forty-nine".