5209913 has 2 divisors, whose sum is σ = 5209914. Its totient is φ = 5209912.

The previous prime is 5209901. The next prime is 5209943. The reversal of 5209913 is 3199025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4892944 + 316969 = 2212^2 + 563^2 .

It is a cyclic number.

It is not a de Polignac number, because 5209913 - 2⁶ = 5209849 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 (5209943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604956 + 2604957.

It is an arithmetic number, because the mean of its divisors is an integer number (2604957).

Almost surely, 2^5209913 is an apocalyptic number.

It is an amenable number.

5209913 is a deficient number, since it is larger than the sum of its proper divisors (1).

5209913 is an equidigital number, since it uses as much as digits as its factorization.

5209913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 5209913 is about 2282.5233843271. The cubic root of 5209913 is about 173.3578412913.

The spelling of 5209913 in words is "five million, two hundred nine thousand, nine hundred thirteen".