55432163 has 4 divisors (see below), whose sum is σ = 55458480. Its totient is φ = 55405848.

The previous prime is 55432159. The next prime is 55432199. The reversal of 55432163 is 36123455.

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 55432163 - 2² = 55432159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55432763) 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, 9695 + ... + 14312.

It is an arithmetic number, because the mean of its divisors is an integer number (13864620).

Almost surely, 2^55432163 is an apocalyptic number.

55432163 is a deficient number, since it is larger than the sum of its proper divisors (26317).

55432163 is a wasteful number, since it uses less digits than its factorization.

55432163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26316.

The product of its digits is 10800, while the sum is 29.

The square root of 55432163 is about 7445.2778994474. The cubic root of 55432163 is about 381.2887063452.

The spelling of 55432163 in words is "fifty-five million, four hundred thirty-two thousand, one hundred sixty-three".