53944181 has 2 divisors, whose sum is σ = 53944182. Its totient is φ = 53944180.

The previous prime is 53944171. The next prime is 53944199. The reversal of 53944181 is 18144935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28793956 + 25150225 = 5366^2 + 5015^2 .

It is a cyclic number.

It is not a de Polignac number, because 53944181 - 2¹⁰ = 53943157 is a prime.

It is a super-2 number, since 2×53944181² = 5819949327521522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53944141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26972090 + 26972091.

It is an arithmetic number, because the mean of its divisors is an integer number (26972091).

Almost surely, 2^53944181 is an apocalyptic number.

It is an amenable number.

53944181 is a deficient number, since it is larger than the sum of its proper divisors (1).

53944181 is an equidigital number, since it uses as much as digits as its factorization.

53944181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 53944181 is about 7344.6702444698. The cubic root of 53944181 is about 377.8460338959.

The spelling of 53944181 in words is "fifty-three million, nine hundred forty-four thousand, one hundred eighty-one".