54202121 has 2 divisors, whose sum is σ = 54202122. Its totient is φ = 54202120.

The previous prime is 54202097. The next prime is 54202133. The reversal of 54202121 is 12120245.

54202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35236096 + 18966025 = 5936^2 + 4355^2 .

It is a cyclic number.

It is not a de Polignac number, because 54202121 - 2²² = 50007817 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54202121.

It is not a weakly prime, because it can be changed into another prime (54205121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27101060 + 27101061.

It is an arithmetic number, because the mean of its divisors is an integer number (27101061).

Almost surely, 2^54202121 is an apocalyptic number.

It is an amenable number.

54202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54202121 is an equidigital number, since it uses as much as digits as its factorization.

54202121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 54202121 is about 7362.2089755725. The cubic root of 54202121 is about 378.4473139253.

Adding to 54202121 its reverse (12120245), we get a palindrome (66322366).

The spelling of 54202121 in words is "fifty-four million, two hundred two thousand, one hundred twenty-one".