54721979555 has 8 divisors (see below), whose sum is σ = 65683774800. Its totient is φ = 43765984096.

The previous prime is 54721979551. The next prime is 54721979563. The reversal of 54721979555 is 55597912745.

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 54721979555 - 2² = 54721979551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54721979494 and 54721979503.

It is not an unprimeable number, because it can be changed into a prime (54721979551) 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, 1429160 + ... + 1466949.

It is an arithmetic number, because the mean of its divisors is an integer number (8210471850).

Almost surely, 2^54721979555 is an apocalyptic number.

54721979555 is a deficient number, since it is larger than the sum of its proper divisors (10961795245).

54721979555 is a wasteful number, since it uses less digits than its factorization.

54721979555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899893.

The product of its digits is 19845000, while the sum is 59.

The spelling of 54721979555 in words is "fifty-four billion, seven hundred twenty-one million, nine hundred seventy-nine thousand, five hundred fifty-five".