518125223 has 32 divisors (see below), whose sum is σ = 671224320. Its totient is φ = 388080000.

The previous prime is 518125219. The next prime is 518125229. The reversal of 518125223 is 322521815.

It is not a de Polignac number, because 518125223 - 2² = 518125219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518125229) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 738773 + ... + 739473.

It is an arithmetic number, because the mean of its divisors is an integer number (20975760).

Almost surely, 2^518125223 is an apocalyptic number.

518125223 is a deficient number, since it is larger than the sum of its proper divisors (153099097).

518125223 is a wasteful number, since it uses less digits than its factorization.

518125223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079.

The product of its digits is 4800, while the sum is 29.

The square root of 518125223 is about 22762.3641786173. The cubic root of 518125223 is about 803.1775823153.

The spelling of 518125223 in words is "five hundred eighteen million, one hundred twenty-five thousand, two hundred twenty-three".