67013533 has 2 divisors, whose sum is σ = 67013534. Its totient is φ = 67013532.

The previous prime is 67013509. The next prime is 67013539. The reversal of 67013533 is 33531076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65885689 + 1127844 = 8117^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 67013533 - 2⁵ = 67013501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67013539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33506766 + 33506767.

It is an arithmetic number, because the mean of its divisors is an integer number (33506767).

Almost surely, 2^67013533 is an apocalyptic number.

It is an amenable number.

67013533 is a deficient number, since it is larger than the sum of its proper divisors (1).

67013533 is an equidigital number, since it uses as much as digits as its factorization.

67013533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 67013533 is about 8186.1793896787. The cubic root of 67013533 is about 406.1821539402.

The spelling of 67013533 in words is "sixty-seven million, thirteen thousand, five hundred thirty-three".