551022544055 has 4 divisors (see below), whose sum is σ = 661227052872. Its totient is φ = 440818035240.

The previous prime is 551022544043. The next prime is 551022544057. The reversal of 551022544055 is 550445220155.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-551022544055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551022544057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55102254401 + ... + 55102254410.

It is an arithmetic number, because the mean of its divisors is an integer number (165306763218).

Almost surely, 2^551022544055 is an apocalyptic number.

551022544055 is a deficient number, since it is larger than the sum of its proper divisors (110204508817).

551022544055 is a wasteful number, since it uses less digits than its factorization.

551022544055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110204508816.

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 551022544055 in words is "five hundred fifty-one billion, twenty-two million, five hundred forty-four thousand, fifty-five".