54504520021 has 8 divisors (see below), whose sum is σ = 62319121920. Its totient is φ = 46696978608.

The previous prime is 54504520009. The next prime is 54504520027. The reversal of 54504520021 is 12002540545.

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

It is not a de Polignac number, because 54504520021 - 2²¹ = 54502422869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54504520027) 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 7 ways as a sum of consecutive naturals, for example, 1748566 + ... + 1779463.

It is an arithmetic number, because the mean of its divisors is an integer number (7789890240).

Almost surely, 2^54504520021 is an apocalyptic number.

It is an amenable number.

54504520021 is a deficient number, since it is larger than the sum of its proper divisors (7814601899).

54504520021 is a wasteful number, since it uses less digits than its factorization.

54504520021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530243.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 54504520021 in words is "fifty-four billion, five hundred four million, five hundred twenty thousand, twenty-one".