55181045067 has 4 divisors (see below), whose sum is σ = 73574726760. Its totient is φ = 36787363376.

The previous prime is 55181044967. The next prime is 55181045099. The reversal of 55181045067 is 76054018155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55181045067 - 2²³ = 55172656459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55181045267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9196840842 + ... + 9196840847.

It is an arithmetic number, because the mean of its divisors is an integer number (18393681690).

Almost surely, 2^55181045067 is an apocalyptic number.

55181045067 is a deficient number, since it is larger than the sum of its proper divisors (18393681693).

55181045067 is a wasteful number, since it uses less digits than its factorization.

55181045067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18393681692.

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 55181045067 in words is "fifty-five billion, one hundred eighty-one million, forty-five thousand, sixty-seven".