5209563966 has 16 divisors (see below), whose sum is σ = 10427289600. Its totient is φ = 1735161048.

The previous prime is 5209563959. The next prime is 5209563977. The reversal of 5209563966 is 6693659025.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331756 + ... + 347103.

It is an arithmetic number, because the mean of its divisors is an integer number (651705600).

Almost surely, 2^5209563966 is an apocalyptic number.

5209563966 is an abundant number, since it is smaller than the sum of its proper divisors (5217725634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5209563966 is a wasteful number, since it uses less digits than its factorization.

5209563966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680143.

The product of its (nonzero) digits is 2624400, while the sum is 51.

The square root of 5209563966 is about 72177.3092183409. The cubic root of 5209563966 is about 1733.5396988108.

The spelling of 5209563966 in words is "five billion, two hundred nine million, five hundred sixty-three thousand, nine hundred sixty-six".