516542 has 8 divisors (see below), whose sum is σ = 834456. Its totient is φ = 238392.

The previous prime is 516541. The next prime is 516563. The reversal of 516542 is 245615.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516541) 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 in 3 ways as a sum of consecutive naturals, for example, 9908 + ... + 9959.

It is an arithmetic number, because the mean of its divisors is an integer number (104307).

2⁵¹⁶⁵⁴² is an apocalyptic number.

516542 is a deficient number, since it is larger than the sum of its proper divisors (317914).

516542 is a wasteful number, since it uses less digits than its factorization.

516542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19882.

The product of its digits is 1200, while the sum is 23.

The square root of 516542 is about 718.7085640230. The cubic root of 516542 is about 80.2358664046.

The spelling of 516542 in words is "five hundred sixteen thousand, five hundred forty-two".