54781764 has 24 divisors (see below), whose sum is σ = 128177280. Its totient is φ = 18210144.

The previous prime is 54781763. The next prime is 54781777. The reversal of 54781764 is 46718745.

54781764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (54781763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1644 + ... + 10595.

It is an arithmetic number, because the mean of its divisors is an integer number (5340720).

Almost surely, 2^54781764 is an apocalyptic number.

It is an amenable number.

54781764 is an abundant number, since it is smaller than the sum of its proper divisors (73395516).

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

54781764 is a wasteful number, since it uses less digits than its factorization.

54781764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12619 (or 12617 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 54781764 is about 7401.4703944554. The cubic root of 54781764 is about 379.7915846975.

The spelling of 54781764 in words is "fifty-four million, seven hundred eighty-one thousand, seven hundred sixty-four".