516345061 has 4 divisors (see below), whose sum is σ = 517495500. Its totient is φ = 515194624.

The previous prime is 516345031. The next prime is 516345073. The reversal of 516345061 is 160543615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160543615 = 5 ⋅32108723.

It can be written as a sum of positive squares in 2 ways, for example, as 397404225 + 118940836 = 19935^2 + 10906^2 .

It is a cyclic number.

It is not a de Polignac number, because 516345061 - 2²⁵ = 482790629 is a prime.

It is a super-2 number, since 2×516345061² = 533224444038187442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516345031) 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 3 ways as a sum of consecutive naturals, for example, 574546 + ... + 575443.

It is an arithmetic number, because the mean of its divisors is an integer number (129373875).

Almost surely, 2^516345061 is an apocalyptic number.

It is an amenable number.

516345061 is a deficient number, since it is larger than the sum of its proper divisors (1150439).

516345061 is a wasteful number, since it uses less digits than its factorization.

516345061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150438.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 516345061 is about 22723.2273456039. The cubic root of 516345061 is about 802.2566808579.

Adding to 516345061 its reverse (160543615), we get a palindrome (676888676).

The spelling of 516345061 in words is "five hundred sixteen million, three hundred forty-five thousand, sixty-one".