54451211523 has 4 divisors (see below), whose sum is σ = 72601615368. Its totient is φ = 36300807680.

The previous prime is 54451211473. The next prime is 54451211527. The reversal of 54451211523 is 32511215445.

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

It is a cyclic number.

It is not a de Polignac number, because 54451211523 - 2⁶ = 54451211459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54451211527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9075201918 + ... + 9075201923.

It is an arithmetic number, because the mean of its divisors is an integer number (18150403842).

Almost surely, 2^54451211523 is an apocalyptic number.

54451211523 is a deficient number, since it is larger than the sum of its proper divisors (18150403845).

54451211523 is a wasteful number, since it uses less digits than its factorization.

54451211523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18150403844.

The product of its digits is 24000, while the sum is 33.

Adding to 54451211523 its reverse (32511215445), we get a palindrome (86962426968).

The spelling of 54451211523 in words is "fifty-four billion, four hundred fifty-one million, two hundred eleven thousand, five hundred twenty-three".