5217523 has 2 divisors, whose sum is σ = 5217524. Its totient is φ = 5217522.

The previous prime is 5217493. The next prime is 5217557. The reversal of 5217523 is 3257125.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5217523 is a prime.

It is not a weakly prime, because it can be changed into another prime (5217923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2608761 + 2608762.

It is an arithmetic number, because the mean of its divisors is an integer number (2608762).

Almost surely, 2^5217523 is an apocalyptic number.

5217523 is a deficient number, since it is larger than the sum of its proper divisors (1).

5217523 is an equidigital number, since it uses as much as digits as its factorization.

5217523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 25.

The square root of 5217523 is about 2284.1897907135. The cubic root of 5217523 is about 173.4422068306.

The spelling of 5217523 in words is "five million, two hundred seventeen thousand, five hundred twenty-three".