55554042512 has 20 divisors (see below), whose sum is σ = 108998440320. Its totient is φ = 27425412768.

The previous prime is 55554042491. The next prime is 55554042517. The reversal of 55554042512 is 21524045555.

It is not an unprimeable number, because it can be changed into a prime (55554042517) 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 3 ways as a sum of consecutive naturals, for example, 21974228 + ... + 21976755.

It is an arithmetic number, because the mean of its divisors is an integer number (5449922016).

Almost surely, 2^55554042512 is an apocalyptic number.

It is an amenable number.

55554042512 is a deficient number, since it is larger than the sum of its proper divisors (53444397808).

55554042512 is a wasteful number, since it uses less digits than its factorization.

55554042512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43951070 (or 43951064 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 55554042512 in words is "fifty-five billion, five hundred fifty-four million, forty-two thousand, five hundred twelve".