53006021 has 2 divisors, whose sum is σ = 53006022. Its totient is φ = 53006020.

The previous prime is 53006003. The next prime is 53006039. The reversal of 53006021 is 12060035.

53006021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (53006003) and next prime (53006039).

It can be written as a sum of positive squares in only one way, i.e., 47761921 + 5244100 = 6911^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 53006021 - 2¹⁴ = 52989637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53006081) 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, 26503010 + 26503011.

It is an arithmetic number, because the mean of its divisors is an integer number (26503011).

Almost surely, 2^53006021 is an apocalyptic number.

It is an amenable number.

53006021 is a deficient number, since it is larger than the sum of its proper divisors (1).

53006021 is an equidigital number, since it uses as much as digits as its factorization.

53006021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 53006021 is about 7280.5234015145. The cubic root of 53006021 is about 375.6427991580.

Adding to 53006021 its reverse (12060035), we get a palindrome (65066056).

The spelling of 53006021 in words is "fifty-three million, six thousand, twenty-one".