516223049 has 2 divisors, whose sum is σ = 516223050. Its totient is φ = 516223048.

The previous prime is 516223009. The next prime is 516223073. The reversal of 516223049 is 940322615.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516198400 + 24649 = 22720^2 + 157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516223049 is a prime.

It is equal to p_27164138 and since 516223049 and 27164138 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (516223009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258111524 + 258111525.

It is an arithmetic number, because the mean of its divisors is an integer number (258111525).

Almost surely, 2^516223049 is an apocalyptic number.

It is an amenable number.

516223049 is a deficient number, since it is larger than the sum of its proper divisors (1).

516223049 is an equidigital number, since it uses as much as digits as its factorization.

516223049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 516223049 is about 22720.5424451090. The cubic root of 516223049 is about 802.1934849704.

The spelling of 516223049 in words is "five hundred sixteen million, two hundred twenty-three thousand, forty-nine".