54077840 has 20 divisors (see below), whose sum is σ = 125731164. Its totient is φ = 21631104.

The previous prime is 54077783. The next prime is 54077909. The reversal of 54077840 is 4877045.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42354064 + 11723776 = 6508^2 + 3424^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 54077840.

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 3 ways as a sum of consecutive naturals, for example, 337907 + ... + 338066.

Almost surely, 2^54077840 is an apocalyptic number.

It is an amenable number.

54077840 is an abundant number, since it is smaller than the sum of its proper divisors (71653324).

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

54077840 is a wasteful number, since it uses less digits than its factorization.

54077840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675986 (or 675980 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 54077840 is about 7353.7636622345. The cubic root of 54077840 is about 378.1578430594.

The spelling of 54077840 in words is "fifty-four million, seventy-seven thousand, eight hundred forty".