54511442231 has 4 divisors (see below), whose sum is σ = 54531914832. Its totient is φ = 54490969632.

The previous prime is 54511442173. The next prime is 54511442233. The reversal of 54511442231 is 13224411545.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54511442231 is a prime.

It is a super-2 number, since 2×54511442231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54511442233) 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, 10232306 + ... + 10237631.

It is an arithmetic number, because the mean of its divisors is an integer number (13632978708).

Almost surely, 2^54511442231 is an apocalyptic number.

54511442231 is a deficient number, since it is larger than the sum of its proper divisors (20472601).

54511442231 is a wasteful number, since it uses less digits than its factorization.

54511442231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20472600.

The product of its digits is 19200, while the sum is 32.

Adding to 54511442231 its reverse (13224411545), we get a palindrome (67735853776).

The spelling of 54511442231 in words is "fifty-four billion, five hundred eleven million, four hundred forty-two thousand, two hundred thirty-one".