517311030 has 32 divisors (see below), whose sum is σ = 1243413504. Its totient is φ = 137742176.

The previous prime is 517311013. The next prime is 517311031. The reversal of 517311030 is 30113715.

It is a super-2 number, since 2×517311030² = 535221403519321800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 517310988 and 517311006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517311031) 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, 7867 + ... + 33113.

It is an arithmetic number, because the mean of its divisors is an integer number (38856672).

Almost surely, 2^517311030 is an apocalyptic number.

517311030 is an abundant number, since it is smaller than the sum of its proper divisors (726102474).

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

517311030 is a wasteful number, since it uses less digits than its factorization.

517311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25940.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 517311030 is about 22744.4725153168. The cubic root of 517311030 is about 802.7566516375.

Adding to 517311030 its reverse (30113715), we get a palindrome (547424745).

The spelling of 517311030 in words is "five hundred seventeen million, three hundred eleven thousand, thirty".