54427766549 has 4 divisors (see below), whose sum is σ = 58614517836. Its totient is φ = 50241015264.

The previous prime is 54427766543. The next prime is 54427766587. The reversal of 54427766549 is 94566772445.

54427766549 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 can be written as a sum of positive squares in 2 ways, for example, as 15275229649 + 39152536900 = 123593^2 + 197870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54427766549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54427766543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093375624 + ... + 2093375649.

It is an arithmetic number, because the mean of its divisors is an integer number (14653629459).

Almost surely, 2^54427766549 is an apocalyptic number.

It is an amenable number.

54427766549 is a deficient number, since it is larger than the sum of its proper divisors (4186751287).

54427766549 is a wasteful number, since it uses less digits than its factorization.

54427766549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186751286.

The product of its digits is 50803200, while the sum is 59.

The spelling of 54427766549 in words is "fifty-four billion, four hundred twenty-seven million, seven hundred sixty-six thousand, five hundred forty-nine".