517132020 has 24 divisors (see below), whose sum is σ = 1447969824. Its totient is φ = 137901856.

The previous prime is 517132003. The next prime is 517132043. The reversal of 517132020 is 20231715.

It is a super-2 number, since 2×517132020² = 534851052218560800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4309374 + ... + 4309493.

It is an arithmetic number, because the mean of its divisors is an integer number (60332076).

Almost surely, 2^517132020 is an apocalyptic number.

It is an amenable number.

517132020 is an abundant number, since it is smaller than the sum of its proper divisors (930837804).

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

517132020 is a wasteful number, since it uses less digits than its factorization.

517132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8618879 (or 8618877 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 517132020 is about 22740.5369329750. The cubic root of 517132020 is about 802.6640458108.

Adding to 517132020 its reverse (20231715), we get a palindrome (537363735).

The spelling of 517132020 in words is "five hundred seventeen million, one hundred thirty-two thousand, twenty".