5205513503 has 2 divisors, whose sum is σ = 5205513504. Its totient is φ = 5205513502.

The previous prime is 5205513493. The next prime is 5205513539. The reversal of 5205513503 is 3053155025.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5205513503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5205513403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602756751 + 2602756752.

It is an arithmetic number, because the mean of its divisors is an integer number (2602756752).

Almost surely, 2^5205513503 is an apocalyptic number.

5205513503 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205513503 is an equidigital number, since it uses as much as digits as its factorization.

5205513503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 5205513503 is about 72149.2446460807. The cubic root of 5205513503 is about 1733.0903036197.

Adding to 5205513503 its reverse (3053155025), we get a palindrome (8258668528).

The spelling of 5205513503 in words is "five billion, two hundred five million, five hundred thirteen thousand, five hundred three".