54545021606 has 32 divisors (see below), whose sum is σ = 87413575680. Its totient is φ = 25469690400.

The previous prime is 54545021591. The next prime is 54545021623. The reversal of 54545021606 is 60612054545.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 54545021606.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4148615 + ... + 4161741.

It is an arithmetic number, because the mean of its divisors is an integer number (2731674240).

Almost surely, 2^54545021606 is an apocalyptic number.

54545021606 is a deficient number, since it is larger than the sum of its proper divisors (32868554074).

54545021606 is a wasteful number, since it uses less digits than its factorization.

54545021606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15500.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 54545021606 in words is "fifty-four billion, five hundred forty-five million, twenty-one thousand, six hundred six".