5166503213 has 2 divisors, whose sum is σ = 5166503214. Its totient is φ = 5166503212.

The previous prime is 5166503131. The next prime is 5166503219. The reversal of 5166503213 is 3123056615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4241005129 + 925498084 = 65123^2 + 30422^2 .

It is a cyclic number.

It is not a de Polignac number, because 5166503213 - 2¹⁶ = 5166437677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5166503213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5166503219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583251606 + 2583251607.

It is an arithmetic number, because the mean of its divisors is an integer number (2583251607).

Almost surely, 2^5166503213 is an apocalyptic number.

It is an amenable number.

5166503213 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166503213 is an equidigital number, since it uses as much as digits as its factorization.

5166503213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 5166503213 is about 71878.3918364901. The cubic root of 5166503213 is about 1728.7501651375.

Adding to 5166503213 its reverse (3123056615), we get a palindrome (8289559828).

The spelling of 5166503213 in words is "five billion, one hundred sixty-six million, five hundred three thousand, two hundred thirteen".