67155055 has 16 divisors (see below), whose sum is σ = 91736064. Its totient is φ = 46715680.

The previous prime is 67155031. The next prime is 67155059. The reversal of 67155055 is 55055176.

It is not a de Polignac number, because 67155055 - 2²³ = 58766447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67155055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67155059) 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 in 15 ways as a sum of consecutive naturals, for example, 25279 + ... + 27808.

It is an arithmetic number, because the mean of its divisors is an integer number (5733504).

Almost surely, 2^67155055 is an apocalyptic number.

67155055 is a deficient number, since it is larger than the sum of its proper divisors (24581009).

67155055 is a wasteful number, since it uses less digits than its factorization.

67155055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53126.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 67155055 is about 8194.8187899428. The cubic root of 67155055 is about 406.4678837528.

The spelling of 67155055 in words is "sixty-seven million, one hundred fifty-five thousand, fifty-five".