67388055 has 16 divisors (see below), whose sum is σ = 123224064. Its totient is φ = 30805920.

The previous prime is 67388033. The next prime is 67388071. The reversal of 67388055 is 55088376.

It is not a de Polignac number, because 67388055 - 2⁵ = 67388023 is a prime.

It is a super-2 number, since 2×67388055² = 9082299913366050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67387998 and 67388016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320791 + ... + 321000.

It is an arithmetic number, because the mean of its divisors is an integer number (7701504).

Almost surely, 2^67388055 is an apocalyptic number.

67388055 is a deficient number, since it is larger than the sum of its proper divisors (55836009).

67388055 is a wasteful number, since it uses less digits than its factorization.

67388055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641806.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 67388055 is about 8209.0227798441. The cubic root of 67388055 is about 406.9374324030.

The spelling of 67388055 in words is "sixty-seven million, three hundred eighty-eight thousand, fifty-five".