5209517 has 2 divisors, whose sum is σ = 5209518. Its totient is φ = 5209516.

The previous prime is 5209513. The next prime is 5209537. The reversal of 5209517 is 7159025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4932841 + 276676 = 2221^2 + 526^2 .

It is a cyclic number.

It is not a de Polignac number, because 5209517 - 2² = 5209513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5209517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5209513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604758 + 2604759.

It is an arithmetic number, because the mean of its divisors is an integer number (2604759).

Almost surely, 2^5209517 is an apocalyptic number.

It is an amenable number.

5209517 is a deficient number, since it is larger than the sum of its proper divisors (1).

5209517 is an equidigital number, since it uses as much as digits as its factorization.

5209517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 5209517 is about 2282.4366365794. The cubic root of 5209517 is about 173.3534489311.

The spelling of 5209517 in words is "five million, two hundred nine thousand, five hundred seventeen".