54566540 has 24 divisors (see below), whose sum is σ = 130960032. Its totient is φ = 18708480.

The previous prime is 54566509. The next prime is 54566581. The reversal of 54566540 is 4566545.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 54566540.

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 7 ways as a sum of consecutive naturals, for example, 194741 + ... + 195020.

It is an arithmetic number, because the mean of its divisors is an integer number (5456668).

Almost surely, 2^54566540 is an apocalyptic number.

It is an amenable number.

54566540 is an abundant number, since it is smaller than the sum of its proper divisors (76393492).

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

54566540 is a wasteful number, since it uses less digits than its factorization.

54566540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389777 (or 389775 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 54566540 is about 7386.9168128523. The cubic root of 54566540 is about 379.2935628616.

The spelling of 54566540 in words is "fifty-four million, five hundred sixty-six thousand, five hundred forty".