516541 has 2 divisors, whose sum is σ = 516542. Its totient is φ = 516540.

The previous prime is 516539. The next prime is 516563. The reversal of 516541 is 145615.

It is an a-pointer prime, because the next prime (516563) can be obtained adding 516541 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417316 + 99225 = 646^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 516541 - 2¹ = 516539 is a prime.

Together with 516539, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258270 + 258271.

It is an arithmetic number, because the mean of its divisors is an integer number (258271).

2⁵¹⁶⁵⁴¹ is an apocalyptic number.

It is an amenable number.

516541 is a deficient number, since it is larger than the sum of its proper divisors (1).

516541 is an equidigital number, since it uses as much as digits as its factorization.

516541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 22.

The square root of 516541 is about 718.7078683304. The cubic root of 516541 is about 80.2358146270.

The spelling of 516541 in words is "five hundred sixteen thousand, five hundred forty-one".