53002813 has 2 divisors, whose sum is σ = 53002814. Its totient is φ = 53002812.

The previous prime is 53002811. The next prime is 53002841. The reversal of 53002813 is 31820035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44863204 + 8139609 = 6698^2 + 2853^2 .

It is a cyclic number.

It is not a de Polignac number, because 53002813 - 2¹ = 53002811 is a prime.

Together with 53002811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53002811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26501406 + 26501407.

It is an arithmetic number, because the mean of its divisors is an integer number (26501407).

Almost surely, 2^53002813 is an apocalyptic number.

It is an amenable number.

53002813 is a deficient number, since it is larger than the sum of its proper divisors (1).

53002813 is an equidigital number, since it uses as much as digits as its factorization.

53002813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 53002813 is about 7280.3030843503. The cubic root of 53002813 is about 375.6352208591.

Adding to 53002813 its reverse (31820035), we get a palindrome (84822848).

The spelling of 53002813 in words is "fifty-three million, two thousand, eight hundred thirteen".