517905130 has 8 divisors (see below), whose sum is σ = 932229252. Its totient is φ = 207162048.

The previous prime is 517905121. The next prime is 517905133. The reversal of 517905130 is 31509715.

It can be written as a sum of positive squares in 2 ways, for example, as 517517001 + 388129 = 22749^2 + 623^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 517905092 and 517905101.

It is not an unprimeable number, because it can be changed into a prime (517905133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25895247 + ... + 25895266.

Almost surely, 2^517905130 is an apocalyptic number.

517905130 is a deficient number, since it is larger than the sum of its proper divisors (414324122).

517905130 is a wasteful number, since it uses less digits than its factorization.

517905130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51790520.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 517905130 is about 22757.5290837999. The cubic root of 517905130 is about 803.0638396703.

The spelling of 517905130 in words is "five hundred seventeen million, nine hundred five thousand, one hundred thirty".