53221043 has 2 divisors, whose sum is σ = 53221044. Its totient is φ = 53221042.

The previous prime is 53221031. The next prime is 53221073. The reversal of 53221043 is 34012235.

It is a happy number.

53221043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53221043 - 2¹⁴ = 53204659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53221013) 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, 26610521 + 26610522.

It is an arithmetic number, because the mean of its divisors is an integer number (26610522).

Almost surely, 2^53221043 is an apocalyptic number.

53221043 is a deficient number, since it is larger than the sum of its proper divisors (1).

53221043 is an equidigital number, since it uses as much as digits as its factorization.

53221043 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 20.

The square root of 53221043 is about 7295.2753889075. The cubic root of 53221043 is about 376.1500528113.

Adding to 53221043 its reverse (34012235), we get a palindrome (87233278).

The spelling of 53221043 in words is "fifty-three million, two hundred twenty-one thousand, forty-three".