55443143513 has 8 divisors (see below), whose sum is σ = 57043439880. Its totient is φ = 53854657920.

The previous prime is 55443143479. The next prime is 55443143519. The reversal of 55443143513 is 31534134455.

It can be written as a sum of positive squares in 4 ways, for example, as 18860078224 + 36583065289 = 137332^2 + 191267^2 .

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 55443143513 - 2²⁰ = 55442094937 is a prime.

It is a super-2 number, since 2×55443143513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55443143519) 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, 2943170 + ... + 2961947.

It is an arithmetic number, because the mean of its divisors is an integer number (7130429985).

Almost surely, 2^55443143513 is an apocalyptic number.

It is an amenable number.

55443143513 is a deficient number, since it is larger than the sum of its proper divisors (1600296367).

55443143513 is a wasteful number, since it uses less digits than its factorization.

55443143513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905387.

The product of its digits is 216000, while the sum is 38.

Adding to 55443143513 its reverse (31534134455), we get a palindrome (86977277968).

The spelling of 55443143513 in words is "fifty-five billion, four hundred forty-three million, one hundred forty-three thousand, five hundred thirteen".