517484856 has 64 divisors (see below), whose sum is σ = 1491667200. Its totient is φ = 146539008.

The previous prime is 517484827. The next prime is 517484857. The reversal of 517484856 is 658484715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517484857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5355 + ... + 32613.

It is an arithmetic number, because the mean of its divisors is an integer number (23307300).

Almost surely, 2^517484856 is an apocalyptic number.

517484856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517484856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745833600).

517484856 is an abundant number, since it is smaller than the sum of its proper divisors (974182344).

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

517484856 is a wasteful number, since it uses less digits than its factorization.

517484856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27388 (or 27384 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 517484856 is about 22748.2934744565. The cubic root of 517484856 is about 802.8465552244.

The spelling of 517484856 in words is "five hundred seventeen million, four hundred eighty-four thousand, eight hundred fifty-six".