55435143 has 8 divisors (see below), whose sum is σ = 73955056. Its totient is φ = 36936000.

The previous prime is 55435123. The next prime is 55435151. The reversal of 55435143 is 34153455.

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

It is a de Polignac number, because none of the positive numbers 2^k-55435143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55435143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55435123) 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 7 ways as a sum of consecutive naturals, for example, 2793 + ... + 10893.

It is an arithmetic number, because the mean of its divisors is an integer number (9244382).

Almost surely, 2^55435143 is an apocalyptic number.

55435143 is a deficient number, since it is larger than the sum of its proper divisors (18519913).

55435143 is a wasteful number, since it uses less digits than its factorization.

55435143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10385.

The product of its digits is 18000, while the sum is 30.

The square root of 55435143 is about 7445.4780236060. The cubic root of 55435143 is about 381.2955388406.

Adding to 55435143 its reverse (34153455), we get a palindrome (89588598).

The spelling of 55435143 in words is "fifty-five million, four hundred thirty-five thousand, one hundred forty-three".