516403291 has 8 divisors (see below), whose sum is σ = 539769600. Its totient is φ = 493113192.

The previous prime is 516403289. The next prime is 516403309. The reversal of 516403291 is 192304615.

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

It is not a de Polignac number, because 516403291 - 2¹ = 516403289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516403201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4965 + ... + 32518.

It is an arithmetic number, because the mean of its divisors is an integer number (67471200).

Almost surely, 2^516403291 is an apocalyptic number.

516403291 is a deficient number, since it is larger than the sum of its proper divisors (23366309).

516403291 is a wasteful number, since it uses less digits than its factorization.

516403291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38105.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 516403291 is about 22724.5085975473. The cubic root of 516403291 is about 802.2868374684.

The spelling of 516403291 in words is "five hundred sixteen million, four hundred three thousand, two hundred ninety-one".