516442523 has 2 divisors, whose sum is σ = 516442524. Its totient is φ = 516442522.

The previous prime is 516442489. The next prime is 516442543. The reversal of 516442523 is 325244615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516442523 - 2¹⁴ = 516426139 is a prime.

It is equal to p_27175190 and since 516442523 and 27175190 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516442523.

It is not a weakly prime, because it can be changed into another prime (516442543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258221261 + 258221262.

It is an arithmetic number, because the mean of its divisors is an integer number (258221262).

Almost surely, 2^516442523 is an apocalyptic number.

516442523 is a deficient number, since it is larger than the sum of its proper divisors (1).

516442523 is an equidigital number, since it uses as much as digits as its factorization.

516442523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 32.

The square root of 516442523 is about 22725.3717901380. The cubic root of 516442523 is about 802.3071539669.

The spelling of 516442523 in words is "five hundred sixteen million, four hundred forty-two thousand, five hundred twenty-three".