517052280 has 128 divisors (see below), whose sum is σ = 1652244480. Its totient is φ = 128993280.

The previous prime is 517052279. The next prime is 517052299. The reversal of 517052280 is 82250715.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388977 + ... + 390303.

It is an arithmetic number, because the mean of its divisors is an integer number (12908160).

Almost surely, 2^517052280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517052280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826122240).

517052280 is an abundant number, since it is smaller than the sum of its proper divisors (1135192200).

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

517052280 is a wasteful number, since it uses less digits than its factorization.

517052280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 517052280 is about 22738.7836086278. The cubic root of 517052280 is about 802.6227876674.

The spelling of 517052280 in words is "five hundred seventeen million, fifty-two thousand, two hundred eighty".