54643880 has 64 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 21254400.

The previous prime is 54643879. The next prime is 54643889. The reversal of 54643880 is 8834645.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (54643889) by changing a digit.

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, 361805 + ... + 361955.

It is an arithmetic number, because the mean of its divisors is an integer number (1975050).

Almost surely, 2^54643880 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 54643880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63201600).

54643880 is an abundant number, since it is smaller than the sum of its proper divisors (71759320).

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

54643880 is a wasteful number, since it uses less digits than its factorization.

54643880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 54643880 is about 7392.1498902552. The cubic root of 54643880 is about 379.4726757753.

The spelling of 54643880 in words is "fifty-four million, six hundred forty-three thousand, eight hundred eighty".