53166121 has 2 divisors, whose sum is σ = 53166122. Its totient is φ = 53166120.

The previous prime is 53166109. The next prime is 53166181. The reversal of 53166121 is 12166135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46090521 + 7075600 = 6789^2 + 2660^2 .

It is a cyclic number.

It is not a de Polignac number, because 53166121 - 2⁷ = 53165993 is a prime.

It is not a weakly prime, because it can be changed into another prime (53166101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26583060 + 26583061.

It is an arithmetic number, because the mean of its divisors is an integer number (26583061).

Almost surely, 2^53166121 is an apocalyptic number.

It is an amenable number.

53166121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53166121 is an equidigital number, since it uses as much as digits as its factorization.

53166121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 53166121 is about 7291.5102002260. The cubic root of 53166121 is about 376.0206176449.

The spelling of 53166121 in words is "fifty-three million, one hundred sixty-six thousand, one hundred twenty-one".