55384163 has 4 divisors (see below), whose sum is σ = 55901880. Its totient is φ = 54866448.

The previous prime is 55384127. The next prime is 55384169. The reversal of 55384163 is 36148355.

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

It is a cyclic number.

It is not a de Polignac number, because 55384163 - 2¹⁴ = 55367779 is a prime.

It is a super-2 number, since 2×55384163² = 6134811022421138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55384169) 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, 258698 + ... + 258911.

It is an arithmetic number, because the mean of its divisors is an integer number (13975470).

Almost surely, 2^55384163 is an apocalyptic number.

55384163 is a deficient number, since it is larger than the sum of its proper divisors (517717).

55384163 is a wasteful number, since it uses less digits than its factorization.

55384163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517716.

The product of its digits is 43200, while the sum is 35.

The square root of 55384163 is about 7442.0536816124. The cubic root of 55384163 is about 381.1786189752.

The spelling of 55384163 in words is "fifty-five million, three hundred eighty-four thousand, one hundred sixty-three".