5259666123 has 8 divisors (see below), whose sum is σ = 7792098000. Its totient is φ = 3506444064.

The previous prime is 5259666121. The next prime is 5259666157. The reversal of 5259666123 is 3216669525.

It is not a de Polignac number, because 5259666123 - 2¹ = 5259666121 is a prime.

It is a super-2 number, since 2×5259666123² = 55328175450867702258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5259666121) by changing a digit.

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, 97401198 + ... + 97401251.

It is an arithmetic number, because the mean of its divisors is an integer number (974012250).

Almost surely, 2^5259666123 is an apocalyptic number.

5259666123 is a deficient number, since it is larger than the sum of its proper divisors (2532431877).

5259666123 is a wasteful number, since it uses less digits than its factorization.

5259666123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194802458 (or 194802452 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 5259666123 is about 72523.5556422877. Note that the first 3 decimals coincide. The cubic root of 5259666123 is about 1739.0793256587.

The spelling of 5259666123 in words is "five billion, two hundred fifty-nine million, six hundred sixty-six thousand, one hundred twenty-three".