54887771 has 4 divisors (see below), whose sum is σ = 54944592. Its totient is φ = 54830952.

The previous prime is 54887753. The next prime is 54887779. The reversal of 54887771 is 17778845.

54887771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54887771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54887779) 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 3 ways as a sum of consecutive naturals, for example, 26936 + ... + 28901.

It is an arithmetic number, because the mean of its divisors is an integer number (13736148).

Almost surely, 2^54887771 is an apocalyptic number.

54887771 is a deficient number, since it is larger than the sum of its proper divisors (56821).

54887771 is an equidigital number, since it uses as much as digits as its factorization.

54887771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56820.

The product of its digits is 439040, while the sum is 47.

The square root of 54887771 is about 7408.6281456151. The cubic root of 54887771 is about 380.0364023299.

The spelling of 54887771 in words is "fifty-four million, eight hundred eighty-seven thousand, seven hundred seventy-one".