54433520 has 80 divisors (see below), whose sum is σ = 133705728. Its totient is φ = 20578560.

The previous prime is 54433501. The next prime is 54433523. The reversal of 54433520 is 2533445.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 54433520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54433523) 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, 116327 + ... + 116793.

Almost surely, 2^54433520 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 54433520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66852864).

54433520 is an abundant number, since it is smaller than the sum of its proper divisors (79272208).

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

54433520 is a wasteful number, since it uses less digits than its factorization.

54433520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 54433520 is about 7377.9075624461. The cubic root of 54433520 is about 378.9851034818.

Adding to 54433520 its reverse (2533445), we get a palindrome (56966965).

The spelling of 54433520 in words is "fifty-four million, four hundred thirty-three thousand, five hundred twenty".