67217053 has 2 divisors, whose sum is σ = 67217054. Its totient is φ = 67217052.

The previous prime is 67217039. The next prime is 67217057. The reversal of 67217053 is 35071276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67190809 + 26244 = 8197^2 + 162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67217053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67217057) 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, 33608526 + 33608527.

It is an arithmetic number, because the mean of its divisors is an integer number (33608527).

Almost surely, 2^67217053 is an apocalyptic number.

It is an amenable number.

67217053 is a deficient number, since it is larger than the sum of its proper divisors (1).

67217053 is an equidigital number, since it uses as much as digits as its factorization.

67217053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 67217053 is about 8198.6006732857. The cubic root of 67217053 is about 406.5929299108.

The spelling of 67217053 in words is "sixty-seven million, two hundred seventeen thousand, fifty-three".