54287140 has 24 divisors (see below), whose sum is σ = 117085752. Its totient is φ = 21127680.

The previous prime is 54287131. The next prime is 54287143. The reversal of 54287140 is 4178245.

54287140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24344356 + 29942784 = 4934^2 + 5472^2 .

It is not an unprimeable number, because it can be changed into a prime (54287143) 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, 35941 + ... + 37420.

It is an arithmetic number, because the mean of its divisors is an integer number (4878573).

Almost surely, 2^54287140 is an apocalyptic number.

It is an amenable number.

54287140 is an abundant number, since it is smaller than the sum of its proper divisors (62798612).

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

54287140 is a wasteful number, since it uses less digits than its factorization.

54287140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73407 (or 73405 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 54287140 is about 7367.9807274449. The cubic root of 54287140 is about 378.6450823482.

The spelling of 54287140 in words is "fifty-four million, two hundred eighty-seven thousand, one hundred forty".