516006523 has 4 divisors (see below), whose sum is σ = 516404448. Its totient is φ = 515608600.

The previous prime is 516006499. The next prime is 516006529. The reversal of 516006523 is 325600615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516006523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516006491 and 516006500.

It is not an unprimeable number, because it can be changed into a prime (516006529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197011 + ... + 199612.

It is an arithmetic number, because the mean of its divisors is an integer number (129101112).

Almost surely, 2^516006523 is an apocalyptic number.

516006523 is a deficient number, since it is larger than the sum of its proper divisors (397925).

516006523 is a wasteful number, since it uses less digits than its factorization.

516006523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397924.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 516006523 is about 22715.7769622789. The cubic root of 516006523 is about 802.0813112129.

The spelling of 516006523 in words is "five hundred sixteen million, six thousand, five hundred twenty-three".