516599969 has 2 divisors, whose sum is σ = 516599970. Its totient is φ = 516599968.

The previous prime is 516599891. The next prime is 516599989. The reversal of 516599969 is 969995615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286015744 + 230584225 = 16912^2 + 15185^2 .

It is a cyclic number.

It is not a de Polignac number, because 516599969 - 2¹⁶ = 516534433 is a prime.

It is a super-2 number, since 2×516599969² = 533751055941601922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (516599989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258299984 + 258299985.

It is an arithmetic number, because the mean of its divisors is an integer number (258299985).

Almost surely, 2^516599969 is an apocalyptic number.

It is an amenable number.

516599969 is a deficient number, since it is larger than the sum of its proper divisors (1).

516599969 is an equidigital number, since it uses as much as digits as its factorization.

516599969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5904900, while the sum is 59.

The square root of 516599969 is about 22728.8356278979. The cubic root of 516599969 is about 802.3886778615.

The spelling of 516599969 in words is "five hundred sixteen million, five hundred ninety-nine thousand, nine hundred sixty-nine".