55000054999979 has 8 divisors (see below), whose sum is σ = 57894873367440. Its totient is φ = 52105244495616.

The previous prime is 55000054999957. The next prime is 55000055000021. The reversal of 55000054999979 is 97999945000055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55000054999979 - 2¹⁶ = 55000054934443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55000054999679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17166407 + ... + 20116799.

It is an arithmetic number, because the mean of its divisors is an integer number (7236859170930).

Almost surely, 2^{55000054999979} is an apocalyptic number.

55000054999979 is a deficient number, since it is larger than the sum of its proper divisors (2894818367461).

55000054999979 is a wasteful number, since it uses less digits than its factorization.

55000054999979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931549.

The product of its (nonzero) digits is 206671500, while the sum is 71.

The spelling of 55000054999979 in words is "fifty-five trillion, fifty-four million, nine hundred ninety-nine thousand, nine hundred seventy-nine".