54505480921 has 4 divisors (see below), whose sum is σ = 54506951332. Its totient is φ = 54504010512.

The previous prime is 54505480919. The next prime is 54505480943. The reversal of 54505480921 is 12908450545.

54505480921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18277688025 + 36227792896 = 135195^2 + 190336^2 .

It is a cyclic number.

It is not a de Polignac number, because 54505480921 - 2¹ = 54505480919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54505480721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678126 + ... + 754231.

It is an arithmetic number, because the mean of its divisors is an integer number (13626737833).

Almost surely, 2^54505480921 is an apocalyptic number.

It is an amenable number.

54505480921 is a deficient number, since it is larger than the sum of its proper divisors (1470411).

54505480921 is a wasteful number, since it uses less digits than its factorization.

54505480921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470410.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 54505480921 in words is "fifty-four billion, five hundred five million, four hundred eighty thousand, nine hundred twenty-one".