54221232 has 80 divisors (see below), whose sum is σ = 155767808. Its totient is φ = 16139520.

The previous prime is 54221207. The next prime is 54221239. The reversal of 54221232 is 23212245.

It is a junction number, because it is equal to n+sod(n) for n = 54221199 and 54221208.

It is not an unprimeable number, because it can be changed into a prime (54221239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17943 + ... + 20745.

Almost surely, 2^54221232 is an apocalyptic number.

54221232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77883904).

54221232 is an abundant number, since it is smaller than the sum of its proper divisors (101546576).

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

54221232 is a wasteful number, since it uses less digits than its factorization.

54221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2852 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 54221232 is about 7363.5067732705. The cubic root of 54221232 is about 378.4917873187.

Adding to 54221232 its reverse (23212245), we get a palindrome (77433477).

The spelling of 54221232 in words is "fifty-four million, two hundred twenty-one thousand, two hundred thirty-two".