67000055 has 8 divisors (see below), whose sum is σ = 80473632. Its totient is φ = 53551008.

The previous prime is 67000049. The next prime is 67000069. The reversal of 67000055 is 55000076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67000055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542 + ... + 11588.

It is an arithmetic number, because the mean of its divisors is an integer number (10059204).

Almost surely, 2^67000055 is an apocalyptic number.

67000055 is a deficient number, since it is larger than the sum of its proper divisors (13473577).

67000055 is a wasteful number, since it uses less digits than its factorization.

67000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12265.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 67000055 is about 8185.3561315315. The cubic root of 67000055 is about 406.1549211814.

The spelling of 67000055 in words is "sixty-seven million, fifty-five", and thus it is an aban number and an uban number.