550005517 has 2 divisors, whose sum is σ = 550005518. Its totient is φ = 550005516.

The previous prime is 550005497. The next prime is 550005527. The reversal of 550005517 is 715500055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 472671081 + 77334436 = 21741^2 + 8794^2 .

It is a cyclic number.

It is not a de Polignac number, because 550005517 - 2²³ = 541616909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550005527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275002758 + 275002759.

It is an arithmetic number, because the mean of its divisors is an integer number (275002759).

Almost surely, 2^550005517 is an apocalyptic number.

It is an amenable number.

550005517 is a deficient number, since it is larger than the sum of its proper divisors (1).

550005517 is an equidigital number, since it uses as much as digits as its factorization.

550005517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 550005517 is about 23452.1964216574. The cubic root of 550005517 is about 819.3240101039.

The spelling of 550005517 in words is "five hundred fifty million, five thousand, five hundred seventeen".