67551349 has 2 divisors, whose sum is σ = 67551350. Its totient is φ = 67551348.

The previous prime is 67551301. The next prime is 67551371. The reversal of 67551349 is 94315576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 15350724 = 7225^2 + 3918^2 .

It is a cyclic number.

It is not a de Polignac number, because 67551349 - 2⁷ = 67551221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67551389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33775674 + 33775675.

It is an arithmetic number, because the mean of its divisors is an integer number (33775675).

Almost surely, 2^67551349 is an apocalyptic number.

It is an amenable number.

67551349 is a deficient number, since it is larger than the sum of its proper divisors (1).

67551349 is an equidigital number, since it uses as much as digits as its factorization.

67551349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 67551349 is about 8218.9627691090. The cubic root of 67551349 is about 407.2658627123.

The spelling of 67551349 in words is "sixty-seven million, five hundred fifty-one thousand, three hundred forty-nine".