55520111141 has 8 divisors (see below), whose sum is σ = 60572729664. Its totient is φ = 50468381920.

The previous prime is 55520111111. The next prime is 55520111149. The reversal of 55520111141 is 14111102555.

It is a happy number.

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

It is not a de Polignac number, because 55520111141 - 2¹⁰ = 55520110117 is a prime.

It is a super-2 number, since 2×55520111141² (a number of 22 digits) contains 22 as substring.

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 55520111141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55520111149) 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, 88265 + ... + 344718.

It is an arithmetic number, because the mean of its divisors is an integer number (7571591208).

Almost surely, 2^55520111141 is an apocalyptic number.

It is an amenable number.

55520111141 is a deficient number, since it is larger than the sum of its proper divisors (5052618523).

55520111141 is a wasteful number, since it uses less digits than its factorization.

55520111141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444651.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 55520111141 its reverse (14111102555), we get a palindrome (69631213696).

It can be divided in two parts, 55520 and 111141, that added together give a palindrome (166661).

The spelling of 55520111141 in words is "fifty-five billion, five hundred twenty million, one hundred eleven thousand, one hundred forty-one".