55005555554979 has 8 divisors (see below), whose sum is σ = 73341181260480. Its totient is φ = 36670150109736.

The previous prime is 55005555554909. The next prime is 55005555554993. The reversal of 55005555554979 is 97945555550055.

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

It is not a de Polignac number, because 55005555554979 - 2¹⁹ = 55005555030691 is a prime.

It is a super-2 number, since 2×55005555554979² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55005555554909) 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, 54481477 + ... + 55481910.

It is an arithmetic number, because the mean of its divisors is an integer number (9167647657560).

Almost surely, 2^{55005555554979} is an apocalyptic number.

55005555554979 is a deficient number, since it is larger than the sum of its proper divisors (18335625705501).

55005555554979 is a wasteful number, since it uses less digits than its factorization.

55005555554979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110130129.

The product of its (nonzero) digits is 885937500, while the sum is 69.

The spelling of 55005555554979 in words is "fifty-five trillion, five billion, five hundred fifty-five million, five hundred fifty-four thousand, nine hundred seventy-nine".