55067868 has 36 divisors (see below), whose sum is σ = 144002040. Its totient is φ = 17722656.

The previous prime is 55067809. The next prime is 55067869. The reversal of 55067868 is 86876055.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55067869) 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 11 ways as a sum of consecutive naturals, for example, 25330 + ... + 27417.

Almost surely, 2^55067868 is an apocalyptic number.

55067868 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

55067868 is an abundant number, since it is smaller than the sum of its proper divisors (88934172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55067868 is a wasteful number, since it uses less digits than its factorization.

55067868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52786 (or 52781 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 55067868 is about 7420.7727360431. The cubic root of 55067868 is about 380.4516052815.

The spelling of 55067868 in words is "fifty-five million, sixty-seven thousand, eight hundred sixty-eight".