67608553 has 2 divisors, whose sum is σ = 67608554. Its totient is φ = 67608552.

The previous prime is 67608511. The next prime is 67608581. The reversal of 67608553 is 35580676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 3736489 = 7992^2 + 1933^2 .

It is a cyclic number.

It is not a de Polignac number, because 67608553 - 2¹³ = 67600361 is a prime.

It is not a weakly prime, because it can be changed into another prime (67608053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33804276 + 33804277.

It is an arithmetic number, because the mean of its divisors is an integer number (33804277).

Almost surely, 2^67608553 is an apocalyptic number.

It is an amenable number.

67608553 is a deficient number, since it is larger than the sum of its proper divisors (1).

67608553 is an equidigital number, since it uses as much as digits as its factorization.

67608553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 67608553 is about 8222.4420338486. The cubic root of 67608553 is about 407.3807909046.

The spelling of 67608553 in words is "sixty-seven million, six hundred eight thousand, five hundred fifty-three".