551243111135 has 16 divisors (see below), whose sum is σ = 670682583840. Its totient is φ = 434869585920.

The previous prime is 551243111129. The next prime is 551243111149. The reversal of 551243111135 is 531111342155.

It is not a de Polignac number, because 551243111135 - 2⁸ = 551243110879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1784576 + ... + 2070554.

It is an arithmetic number, because the mean of its divisors is an integer number (41917661490).

Almost surely, 2^551243111135 is an apocalyptic number.

551243111135 is a deficient number, since it is larger than the sum of its proper divisors (119439472705).

551243111135 is a wasteful number, since it uses less digits than its factorization.

551243111135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291338.

The product of its digits is 9000, while the sum is 32.

The spelling of 551243111135 in words is "five hundred fifty-one billion, two hundred forty-three million, one hundred eleven thousand, one hundred thirty-five".