53521033 has 2 divisors, whose sum is σ = 53521034. Its totient is φ = 53521032.

The previous prime is 53521009. The next prime is 53521067. The reversal of 53521033 is 33012535.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44448889 + 9072144 = 6667^2 + 3012^2 .

It is a cyclic number.

It is not a de Polignac number, because 53521033 - 2⁵ = 53521001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53520995 and 53521013.

It is not a weakly prime, because it can be changed into another prime (53521003) 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, 26760516 + 26760517.

It is an arithmetic number, because the mean of its divisors is an integer number (26760517).

Almost surely, 2^53521033 is an apocalyptic number.

It is an amenable number.

53521033 is a deficient number, since it is larger than the sum of its proper divisors (1).

53521033 is an equidigital number, since it uses as much as digits as its factorization.

53521033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 53521033 is about 7315.8070641591. The cubic root of 53521033 is about 376.8554749072.

Adding to 53521033 its reverse (33012535), we get a palindrome (86533568).

The spelling of 53521033 in words is "fifty-three million, five hundred twenty-one thousand, thirty-three".