517225349 has 2 divisors, whose sum is σ = 517225350. Its totient is φ = 517225348.

The previous prime is 517225337. The next prime is 517225363. The reversal of 517225349 is 943522715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484792324 + 32433025 = 22018^2 + 5695^2 .

It is a cyclic number.

It is not a de Polignac number, because 517225349 - 2¹² = 517221253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517225309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258612674 + 258612675.

It is an arithmetic number, because the mean of its divisors is an integer number (258612675).

Almost surely, 2^517225349 is an apocalyptic number.

It is an amenable number.

517225349 is a deficient number, since it is larger than the sum of its proper divisors (1).

517225349 is an equidigital number, since it uses as much as digits as its factorization.

517225349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 517225349 is about 22742.5888807761. The cubic root of 517225349 is about 802.7123296298.

The spelling of 517225349 in words is "five hundred seventeen million, two hundred twenty-five thousand, three hundred forty-nine".