53959181 has 2 divisors, whose sum is σ = 53959182. Its totient is φ = 53959180.

The previous prime is 53959163. The next prime is 53959201. The reversal of 53959181 is 18195935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32103556 + 21855625 = 5666^2 + 4675^2 .

It is a cyclic number.

It is not a de Polignac number, because 53959181 - 2⁶ = 53959117 is a prime.

It is a super-2 number, since 2×53959181² = 5823186428381522, 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 (53953181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26979590 + 26979591.

It is an arithmetic number, because the mean of its divisors is an integer number (26979591).

Almost surely, 2^53959181 is an apocalyptic number.

It is an amenable number.

53959181 is a deficient number, since it is larger than the sum of its proper divisors (1).

53959181 is an equidigital number, since it uses as much as digits as its factorization.

53959181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 41.

The square root of 53959181 is about 7345.6913221289. The cubic root of 53959181 is about 377.8810525958.

The spelling of 53959181 in words is "fifty-three million, nine hundred fifty-nine thousand, one hundred eighty-one".