53806013 has 2 divisors, whose sum is σ = 53806014. Its totient is φ = 53806012.

The previous prime is 53806009. The next prime is 53806021. The reversal of 53806013 is 31060835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53772889 + 33124 = 7333^2 + 182^2 .

It is a cyclic number.

It is not a de Polignac number, because 53806013 - 2² = 53806009 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 (53806073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26903006 + 26903007.

It is an arithmetic number, because the mean of its divisors is an integer number (26903007).

Almost surely, 2^53806013 is an apocalyptic number.

It is an amenable number.

53806013 is a deficient number, since it is larger than the sum of its proper divisors (1).

53806013 is an equidigital number, since it uses as much as digits as its factorization.

53806013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 53806013 is about 7335.2582094975. The cubic root of 53806013 is about 377.5231639368.

Adding to 53806013 its reverse (31060835), we get a palindrome (84866848).

The spelling of 53806013 in words is "fifty-three million, eight hundred six thousand, thirteen".