54999999972 has 48 divisors (see below), whose sum is σ = 150980397120. Its totient is φ = 17254901376.

The previous prime is 54999999953. The next prime is 55000000001. The reversal of 54999999972 is 27999999945.

It is a junction number, because it is equal to n+sod(n) for n = 54999999891 and 54999999900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14976378 + ... + 14980049.

It is an arithmetic number, because the mean of its divisors is an integer number (3145424940).

Almost surely, 2^54999999972 is an apocalyptic number.

It is an amenable number.

54999999972 is an abundant number, since it is smaller than the sum of its proper divisors (95980397148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54999999972 is a wasteful number, since it uses less digits than its factorization.

54999999972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29956457 (or 29956449 counting only the distinct ones).

The product of its digits is 1339231320, while the sum is 81.

The spelling of 54999999972 in words is "fifty-four billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-two".