54775887 has 16 divisors (see below), whose sum is σ = 77834592. Its totient is φ = 34145280.

The previous prime is 54775883. The next prime is 54775891. The reversal of 54775887 is 78857745.

54775887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54775883) and next prime (54775891).

It is not a de Polignac number, because 54775887 - 2² = 54775883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54775883) 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 15 ways as a sum of consecutive naturals, for example, 4587 + ... + 11427.

It is an arithmetic number, because the mean of its divisors is an integer number (4864662).

Almost surely, 2^54775887 is an apocalyptic number.

54775887 is a deficient number, since it is larger than the sum of its proper divisors (23058705).

54775887 is a wasteful number, since it uses less digits than its factorization.

54775887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018.

The product of its digits is 2195200, while the sum is 51.

The square root of 54775887 is about 7401.0733681001. The cubic root of 54775887 is about 379.7780028361.

The spelling of 54775887 in words is "fifty-four million, seven hundred seventy-five thousand, eight hundred eighty-seven".