55667172273427 has 24 divisors (see below), whose sum is σ = 67137939115632. Its totient is φ = 45832320156480.

The previous prime is 55667172273389. The next prime is 55667172273431. The reversal of 55667172273427 is 72437227176655.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-55667172273427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55667172273497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333776773 + ... + 333943510.

It is an arithmetic number, because the mean of its divisors is an integer number (2797414129818).

Almost surely, 2^{55667172273427} is an apocalyptic number.

55667172273427 is a deficient number, since it is larger than the sum of its proper divisors (11470766842205).

55667172273427 is a wasteful number, since it uses less digits than its factorization.

55667172273427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667720371 (or 667720360 counting only the distinct ones).

The product of its digits is 207446400, while the sum is 64.

The spelling of 55667172273427 in words is "fifty-five trillion, six hundred sixty-seven billion, one hundred seventy-two million, two hundred seventy-three thousand, four hundred twenty-seven".