55662143 has 8 divisors (see below), whose sum is σ = 57598080. Its totient is φ = 53735040.

The previous prime is 55662119. The next prime is 55662151. The reversal of 55662143 is 34126655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55662143 - 2²⁰ = 54613567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55662163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12203 + ... + 16131.

It is an arithmetic number, because the mean of its divisors is an integer number (7199760).

Almost surely, 2^55662143 is an apocalyptic number.

55662143 is a deficient number, since it is larger than the sum of its proper divisors (1935937).

55662143 is a wasteful number, since it uses less digits than its factorization.

55662143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417.

The product of its digits is 21600, while the sum is 32.

The square root of 55662143 is about 7460.7066019245. The cubic root of 55662143 is about 381.8152826225.

Adding to 55662143 its reverse (34126655), we get a palindrome (89788798).

The spelling of 55662143 in words is "fifty-five million, six hundred sixty-two thousand, one hundred forty-three".