518047023 has 24 divisors (see below), whose sum is σ = 753432960. Its totient is φ = 316461600.

The previous prime is 518046973. The next prime is 518047037. The reversal of 518047023 is 320740815.

It is not a de Polignac number, because 518047023 - 2⁹ = 518046511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518047723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66798 + ... + 74148.

It is an arithmetic number, because the mean of its divisors is an integer number (31393040).

Almost surely, 2^518047023 is an apocalyptic number.

518047023 is a deficient number, since it is larger than the sum of its proper divisors (235385937).

518047023 is a wasteful number, since it uses less digits than its factorization.

518047023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519 (or 7506 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 518047023 is about 22760.6463660415. The cubic root of 518047023 is about 803.1371727487.

Adding to 518047023 its reverse (320740815), we get a palindrome (838787838).

The spelling of 518047023 in words is "five hundred eighteen million, forty-seven thousand, twenty-three".