33104525421521 has 2 divisors, whose sum is σ = 33104525421522. Its totient is φ = 33104525421520.

The previous prime is 33104525421467. The next prime is 33104525421523. The reversal of 33104525421521 is 12512452540133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32632884750400 + 471640671121 = 5712520^2 + 686761^2 .

It is a cyclic number.

It is not a de Polignac number, because 33104525421521 - 2²⁶ = 33104458312657 is a prime.

Together with 33104525421523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33104525421523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16552262710760 + 16552262710761.

It is an arithmetic number, because the mean of its divisors is an integer number (16552262710761).

Almost surely, 2^{33104525421521} is an apocalyptic number.

It is an amenable number.

33104525421521 is a deficient number, since it is larger than the sum of its proper divisors (1).

33104525421521 is an equidigital number, since it uses as much as digits as its factorization.

33104525421521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 33104525421521 its reverse (12512452540133), we get a palindrome (45616977961654).

The spelling of 33104525421521 in words is "thirty-three trillion, one hundred four billion, five hundred twenty-five million, four hundred twenty-one thousand, five hundred twenty-one".