54221311504 has 80 divisors (see below), whose sum is σ = 112627041408. Its totient is φ = 25198258176.

The previous prime is 54221311493. The next prime is 54221311523. The reversal of 54221311504 is 40511312245.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7127767 + ... + 7135369.

Almost surely, 2^54221311504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54221311504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56313520704).

54221311504 is an abundant number, since it is smaller than the sum of its proper divisors (58405729904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54221311504 is a wasteful number, since it uses less digits than its factorization.

54221311504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952 (or 7946 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 54221311504 its reverse (40511312245), we get a palindrome (94732623749).

The spelling of 54221311504 in words is "fifty-four billion, two hundred twenty-one million, three hundred eleven thousand, five hundred four".