54771655 has 16 divisors (see below), whose sum is σ = 67989600. Its totient is φ = 42325632.

The previous prime is 54771653. The next prime is 54771659. The reversal of 54771655 is 55617745.

It is a happy number.

It is not a de Polignac number, because 54771655 - 2¹ = 54771653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54771653) 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 15 ways as a sum of consecutive naturals, for example, 26572 + ... + 28558.

It is an arithmetic number, because the mean of its divisors is an integer number (4249350).

Almost surely, 2^54771655 is an apocalyptic number.

54771655 is a deficient number, since it is larger than the sum of its proper divisors (13217945).

54771655 is a wasteful number, since it uses less digits than its factorization.

54771655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its digits is 147000, while the sum is 40.

The square root of 54771655 is about 7400.7874581020. The cubic root of 54771655 is about 379.7682220001.

The spelling of 54771655 in words is "fifty-four million, seven hundred seventy-one thousand, six hundred fifty-five".