516538 has 16 divisors (see below), whose sum is σ = 863136. Its totient is φ = 229840.

The previous prime is 516521. The next prime is 516539. The reversal of 516538 is 835615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (53946).

2⁵¹⁶⁵³⁸ is an apocalyptic number.

516538 is a deficient number, since it is larger than the sum of its proper divisors (346598).

516538 is a wasteful number, since it uses less digits than its factorization.

516538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its digits is 3600, while the sum is 28.

The square root of 516538 is about 718.7057812485. The cubic root of 516538 is about 80.2356592937.

The spelling of 516538 in words is "five hundred sixteen thousand, five hundred thirty-eight".