53421833 has 2 divisors, whose sum is σ = 53421834. Its totient is φ = 53421832.

The previous prime is 53421763. The next prime is 53421839. The reversal of 53421833 is 33812435.

53421833 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., 53392249 + 29584 = 7307^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 53421833 - 2¹² = 53417737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53421796 and 53421805.

It is not a weakly prime, because it can be changed into another prime (53421839) 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, 26710916 + 26710917.

It is an arithmetic number, because the mean of its divisors is an integer number (26710917).

Almost surely, 2^53421833 is an apocalyptic number.

It is an amenable number.

53421833 is a deficient number, since it is larger than the sum of its proper divisors (1).

53421833 is an equidigital number, since it uses as much as digits as its factorization.

53421833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 53421833 is about 7309.0240798618. The cubic root of 53421833 is about 376.6224999336.

The spelling of 53421833 in words is "fifty-three million, four hundred twenty-one thousand, eight hundred thirty-three".