68204533 has 2 divisors, whose sum is σ = 68204534. Its totient is φ = 68204532.

The previous prime is 68204501. The next prime is 68204573. The reversal of 68204533 is 33540286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67864644 + 339889 = 8238^2 + 583^2 .

It is a cyclic number.

It is not a de Polignac number, because 68204533 - 2⁵ = 68204501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68204495 and 68204504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68204573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34102266 + 34102267.

It is an arithmetic number, because the mean of its divisors is an integer number (34102267).

Almost surely, 2^68204533 is an apocalyptic number.

It is an amenable number.

68204533 is a deficient number, since it is larger than the sum of its proper divisors (1).

68204533 is an equidigital number, since it uses as much as digits as its factorization.

68204533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 68204533 is about 8258.6035744549. The cubic root of 68204533 is about 408.5743325175.

The spelling of 68204533 in words is "sixty-eight million, two hundred four thousand, five hundred thirty-three".