53711813 has 2 divisors, whose sum is σ = 53711814. Its totient is φ = 53711812.

The previous prime is 53711761. The next prime is 53711839. The reversal of 53711813 is 31811735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36264484 + 17447329 = 6022^2 + 4177^2 .

It is a cyclic number.

It is not a de Polignac number, because 53711813 - 2¹⁶ = 53646277 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 (53711213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26855906 + 26855907.

It is an arithmetic number, because the mean of its divisors is an integer number (26855907).

Almost surely, 2^53711813 is an apocalyptic number.

It is an amenable number.

53711813 is a deficient number, since it is larger than the sum of its proper divisors (1).

53711813 is an equidigital number, since it uses as much as digits as its factorization.

53711813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 29.

The square root of 53711813 is about 7328.8343547934. The cubic root of 53711813 is about 377.3027210665.

The spelling of 53711813 in words is "fifty-three million, seven hundred eleven thousand, eight hundred thirteen".