54487277 has 4 divisors (see below), whose sum is σ = 58678620. Its totient is φ = 50295936.

The previous prime is 54487271. The next prime is 54487291. The reversal of 54487277 is 77278445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7070281 + 47416996 = 2659^2 + 6886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54487277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54487271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2095652 + ... + 2095677.

It is an arithmetic number, because the mean of its divisors is an integer number (14669655).

Almost surely, 2^54487277 is an apocalyptic number.

It is an amenable number.

54487277 is a deficient number, since it is larger than the sum of its proper divisors (4191343).

54487277 is a wasteful number, since it uses less digits than its factorization.

54487277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191342.

The product of its digits is 439040, while the sum is 44.

The square root of 54487277 is about 7381.5497695267. The cubic root of 54487277 is about 379.1098207470.

The spelling of 54487277 in words is "fifty-four million, four hundred eighty-seven thousand, two hundred seventy-seven".