517441220 has 12 divisors (see below), whose sum is σ = 1086626604. Its totient is φ = 206976480.

The previous prime is 517441217. The next prime is 517441241. The reversal of 517441220 is 22144715.

It can be written as a sum of positive squares in 2 ways, for example, as 202094656 + 315346564 = 14216^2 + 17758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 517441220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12936011 + ... + 12936050.

It is an arithmetic number, because the mean of its divisors is an integer number (90552217).

Almost surely, 2^517441220 is an apocalyptic number.

It is an amenable number.

517441220 is an abundant number, since it is smaller than the sum of its proper divisors (569185384).

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

517441220 is a wasteful number, since it uses less digits than its factorization.

517441220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25872070 (or 25872068 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 517441220 is about 22747.3343493254. The cubic root of 517441220 is about 802.8239883823.

Adding to 517441220 its reverse (22144715), we get a palindrome (539585935).

The spelling of 517441220 in words is "five hundred seventeen million, four hundred forty-one thousand, two hundred twenty".