53380121 has 2 divisors, whose sum is σ = 53380122. Its totient is φ = 53380120.

The previous prime is 53380111. The next prime is 53380141. The reversal of 53380121 is 12108335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49632025 + 3748096 = 7045^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 53380121 - 2⁶ = 53380057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53380111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26690060 + 26690061.

It is an arithmetic number, because the mean of its divisors is an integer number (26690061).

Almost surely, 2^53380121 is an apocalyptic number.

It is an amenable number.

53380121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53380121 is an equidigital number, since it uses as much as digits as its factorization.

53380121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 53380121 is about 7306.1700637201. The cubic root of 53380121 is about 376.5244515806.

Adding to 53380121 its reverse (12108335), we get a palindrome (65488456).

The spelling of 53380121 in words is "fifty-three million, three hundred eighty thousand, one hundred twenty-one".