516421073 has 8 divisors (see below), whose sum is σ = 590375040. Its totient is φ = 442512000.

The previous prime is 516421063. The next prime is 516421079. The reversal of 516421073 is 370124615.

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

It is not a de Polignac number, because 516421073 - 2¹⁰ = 516420049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516421079) 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 7 ways as a sum of consecutive naturals, for example, 18788 + ... + 37226.

It is an arithmetic number, because the mean of its divisors is an integer number (73796880).

Almost surely, 2^516421073 is an apocalyptic number.

It is an amenable number.

516421073 is a deficient number, since it is larger than the sum of its proper divisors (73953967).

516421073 is a wasteful number, since it uses less digits than its factorization.

516421073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22447.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 516421073 is about 22724.8998457639. The cubic root of 516421073 is about 802.2960460985.

Adding to 516421073 its reverse (370124615), we get a palindrome (886545688).

It can be divided in two parts, 51 and 6421073, that multiplied together give a palindrome (327474723).

The spelling of 516421073 in words is "five hundred sixteen million, four hundred twenty-one thousand, seventy-three".