52313381 has 2 divisors, whose sum is σ = 52313382. Its totient is φ = 52313380.

The previous prime is 52313341. The next prime is 52313411. The reversal of 52313381 is 18331325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38130625 + 14182756 = 6175^2 + 3766^2 .

It is a cyclic number.

It is not a de Polignac number, because 52313381 - 2¹⁰ = 52312357 is a prime.

It is a super-2 number, since 2×52313381² = 5473379663302322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52313381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52313321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26156690 + 26156691.

It is an arithmetic number, because the mean of its divisors is an integer number (26156691).

Almost surely, 2^52313381 is an apocalyptic number.

It is an amenable number.

52313381 is a deficient number, since it is larger than the sum of its proper divisors (1).

52313381 is an equidigital number, since it uses as much as digits as its factorization.

52313381 is an evil number, because the sum of its binary digits is even.

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

The square root of 52313381 is about 7232.7989741178. The cubic root of 52313381 is about 373.9994209148. Note that the first 3 decimals are identical.

The spelling of 52313381 in words is "fifty-two million, three hundred thirteen thousand, three hundred eighty-one".