54395977 has 4 divisors (see below), whose sum is σ = 54411156. Its totient is φ = 54380800.

The previous prime is 54395963. The next prime is 54395981. The reversal of 54395977 is 77959345.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 32764176 + 21631801 = 5724^2 + 4651^2 .

It is a cyclic number.

It is not a de Polignac number, because 54395977 - 2¹⁹ = 53871689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54395977.

It is not an unprimeable number, because it can be changed into a prime (54395177) by changing a digit.

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, 1113 + ... + 10489.

It is an arithmetic number, because the mean of its divisors is an integer number (13602789).

Almost surely, 2^54395977 is an apocalyptic number.

It is an amenable number.

54395977 is a deficient number, since it is larger than the sum of its proper divisors (15179).

54395977 is an equidigital number, since it uses as much as digits as its factorization.

54395977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15178.

The product of its digits is 1190700, while the sum is 49.

The square root of 54395977 is about 7375.3628385321. The cubic root of 54395977 is about 378.8979543007.

The spelling of 54395977 in words is "fifty-four million, three hundred ninety-five thousand, nine hundred seventy-seven".