54454355521 has 4 divisors (see below), whose sum is σ = 54814980544. Its totient is φ = 54093730500.

The previous prime is 54454355497. The next prime is 54454355539. The reversal of 54454355521 is 12555345445.

54454355521 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54454355521 - 2⁹ = 54454355009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54454355581) 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, 180312285 + ... + 180312586.

It is an arithmetic number, because the mean of its divisors is an integer number (13703745136).

Almost surely, 2^54454355521 is an apocalyptic number.

It is an amenable number.

54454355521 is a deficient number, since it is larger than the sum of its proper divisors (360625023).

54454355521 is a wasteful number, since it uses less digits than its factorization.

54454355521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360625022.

The product of its digits is 1200000, while the sum is 43.

The spelling of 54454355521 in words is "fifty-four billion, four hundred fifty-four million, three hundred fifty-five thousand, five hundred twenty-one".