55443511 has 8 divisors (see below), whose sum is σ = 58910544. Its totient is φ = 51999360.

The previous prime is 55443497. The next prime is 55443517. The reversal of 55443511 is 11534455.

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 55443511 - 2¹³ = 55435319 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 55443511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55443517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (7363818).

Almost surely, 2^55443511 is an apocalyptic number.

55443511 is a deficient number, since it is larger than the sum of its proper divisors (3467033).

55443511 is a wasteful number, since it uses less digits than its factorization.

55443511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11441.

The product of its digits is 6000, while the sum is 28.

The square root of 55443511 is about 7446.0399542307. The cubic root of 55443511 is about 381.3147235452.

Adding to 55443511 its reverse (11534455), we get a palindrome (66977966).

The spelling of 55443511 in words is "fifty-five million, four hundred forty-three thousand, five hundred eleven".