54020664 has 24 divisors (see below), whose sum is σ = 146306160. Its totient is φ = 18006864.

The previous prime is 54020653. The next prime is 54020669. The reversal of 54020664 is 46602045.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54020669) 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 5 ways as a sum of consecutive naturals, for example, 375072 + ... + 375215.

It is an arithmetic number, because the mean of its divisors is an integer number (6096090).

Almost surely, 2^54020664 is an apocalyptic number.

It is an amenable number.

54020664 is an abundant number, since it is smaller than the sum of its proper divisors (92285496).

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

54020664 is a wasteful number, since it uses less digits than its factorization.

54020664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750299 (or 750292 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 54020664 is about 7349.8751009796. The cubic root of 54020664 is about 378.0245217988.

The spelling of 54020664 in words is "fifty-four million, twenty thousand, six hundred sixty-four".