517022249 has 2 divisors, whose sum is σ = 517022250. Its totient is φ = 517022248.

The previous prime is 517022197. The next prime is 517022263. The reversal of 517022249 is 942220715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476636224 + 40386025 = 21832^2 + 6355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-517022249 is a prime.

It is a super-2 number, since 2×517022249² = 534624011922036002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (517022269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258511124 + 258511125.

It is an arithmetic number, because the mean of its divisors is an integer number (258511125).

Almost surely, 2^517022249 is an apocalyptic number.

It is an amenable number.

517022249 is a deficient number, since it is larger than the sum of its proper divisors (1).

517022249 is an equidigital number, since it uses as much as digits as its factorization.

517022249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 517022249 is about 22738.1232514911. The cubic root of 517022249 is about 802.6072482771.

The spelling of 517022249 in words is "five hundred seventeen million, twenty-two thousand, two hundred forty-nine".