68252533 has 2 divisors, whose sum is σ = 68252534. Its totient is φ = 68252532.

The previous prime is 68252461. The next prime is 68252539. The reversal of 68252533 is 33525286.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67601284 + 651249 = 8222^2 + 807^2 .

It is a cyclic number.

It is not a de Polignac number, because 68252533 - 2⁹ = 68252021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68252539) 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, 34126266 + 34126267.

It is an arithmetic number, because the mean of its divisors is an integer number (34126267).

Almost surely, 2^68252533 is an apocalyptic number.

It is an amenable number.

68252533 is a deficient number, since it is larger than the sum of its proper divisors (1).

68252533 is an equidigital number, since it uses as much as digits as its factorization.

68252533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 34.

The square root of 68252533 is about 8261.5091236408. The cubic root of 68252533 is about 408.6701568869.

The spelling of 68252533 in words is "sixty-eight million, two hundred fifty-two thousand, five hundred thirty-three".