551331022044 has 48 divisors (see below), whose sum is σ = 1403638298496. Its totient is φ = 167040216000.

The previous prime is 551331022031. The next prime is 551331022051. The reversal of 551331022044 is 440220133155.

It is a super-2 number, since 2×551331022044² (a number of 24 digits) contains 22 as substring.

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, 376374 + ... + 1115490.

It is an arithmetic number, because the mean of its divisors is an integer number (29242464552).

Almost surely, 2^551331022044 is an apocalyptic number.

It is an amenable number.

551331022044 is an abundant number, since it is smaller than the sum of its proper divisors (852307276452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551331022044 is a wasteful number, since it uses less digits than its factorization.

551331022044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744786 (or 744784 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 551331022044 its reverse (440220133155), we get a palindrome (991551155199).

Subtracting from 551331022044 its reverse (440220133155), we obtain a square (111110888889 = 333333²).

The spelling of 551331022044 in words is "five hundred fifty-one billion, three hundred thirty-one million, twenty-two thousand, forty-four".