54643920 has 80 divisors (see below), whose sum is σ = 170322432. Its totient is φ = 14492160.

The previous prime is 54643913. The next prime is 54643949. The reversal of 54643920 is 2934645.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53010 + ... + 54030.

Almost surely, 2^54643920 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 54643920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85161216).

54643920 is an abundant number, since it is smaller than the sum of its proper divisors (115678512).

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

54643920 is a wasteful number, since it uses less digits than its factorization.

54643920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 54643920 is about 7392.1525958276. The cubic root of 54643920 is about 379.4727683682.

The spelling of 54643920 in words is "fifty-four million, six hundred forty-three thousand, nine hundred twenty".