53332813 has 2 divisors, whose sum is σ = 53332814. Its totient is φ = 53332812.

The previous prime is 53332789. The next prime is 53332823. The reversal of 53332813 is 31823335.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30503529 + 22829284 = 5523^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 53332813 - 2¹⁷ = 53201741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53332823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26666406 + 26666407.

It is an arithmetic number, because the mean of its divisors is an integer number (26666407).

Almost surely, 2^53332813 is an apocalyptic number.

It is an amenable number.

53332813 is a deficient number, since it is larger than the sum of its proper divisors (1).

53332813 is an equidigital number, since it uses as much as digits as its factorization.

53332813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 53332813 is about 7302.9318085273. The cubic root of 53332813 is about 376.4131874174.

It can be divided in two parts, 53332 and 813, that added together give a palindrome (54145).

The spelling of 53332813 in words is "fifty-three million, three hundred thirty-two thousand, eight hundred thirteen".