551224143020 has 24 divisors (see below), whose sum is σ = 1158192793968. Its totient is φ = 220371163200.

The previous prime is 551224143011. The next prime is 551224143049. The reversal of 551224143020 is 20341422155.

It is an unprimeable number.

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, 7367726 + ... + 7442165.

It is an arithmetic number, because the mean of its divisors is an integer number (48258033082).

Almost surely, 2^551224143020 is an apocalyptic number.

It is an amenable number.

551224143020 is an abundant number, since it is smaller than the sum of its proper divisors (606968650948).

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

551224143020 is a wasteful number, since it uses less digits than its factorization.

551224143020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14811761 (or 14811759 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 551224143020 its reverse (20341422155), we get a palindrome (571565565175).

The spelling of 551224143020 in words is "five hundred fifty-one billion, two hundred twenty-four million, one hundred forty-three thousand, twenty".