53375381 has 2 divisors, whose sum is σ = 53375382. Its totient is φ = 53375380.

The previous prime is 53375363. The next prime is 53375383. The reversal of 53375381 is 18357335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45900625 + 7474756 = 6775^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 53375381 - 2¹⁴ = 53358997 is a prime.

It is a super-2 number, since 2×53375381² = 5697862593790322, which contains 22 as substring.

Together with 53375383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53375383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26687690 + 26687691.

It is an arithmetic number, because the mean of its divisors is an integer number (26687691).

Almost surely, 2^53375381 is an apocalyptic number.

It is an amenable number.

53375381 is a deficient number, since it is larger than the sum of its proper divisors (1).

53375381 is an equidigital number, since it uses as much as digits as its factorization.

53375381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 53375381 is about 7305.8456731579. The cubic root of 53375381 is about 376.5133064907.

The spelling of 53375381 in words is "fifty-three million, three hundred seventy-five thousand, three hundred eighty-one".