5261813 has 2 divisors, whose sum is σ = 5261814. Its totient is φ = 5261812.

The previous prime is 5261801. The next prime is 5261821. The reversal of 5261813 is 3181625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5207524 + 54289 = 2282^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 5261813 - 2⁶ = 5261749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5261833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630906 + 2630907.

It is an arithmetic number, because the mean of its divisors is an integer number (2630907).

Almost surely, 2^5261813 is an apocalyptic number.

It is an amenable number.

5261813 is a deficient number, since it is larger than the sum of its proper divisors (1).

5261813 is an equidigital number, since it uses as much as digits as its factorization.

5261813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 5261813 is about 2293.8642069661. The cubic root of 5261813 is about 173.9315911115.

The spelling of 5261813 in words is "five million, two hundred sixty-one thousand, eight hundred thirteen".