551213505422 has 8 divisors (see below), whose sum is σ = 829893940200. Its totient is φ = 274582192024.

The previous prime is 551213505383. The next prime is 551213505431. The reversal of 551213505422 is 224505312155.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512279672 + ... + 512280747.

It is an arithmetic number, because the mean of its divisors is an integer number (103736742525).

Almost surely, 2^551213505422 is an apocalyptic number.

551213505422 is a deficient number, since it is larger than the sum of its proper divisors (278680434778).

551213505422 is a wasteful number, since it uses less digits than its factorization.

551213505422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024560690.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 551213505422 its reverse (224505312155), we get a palindrome (775718817577).

The spelling of 551213505422 in words is "five hundred fifty-one billion, two hundred thirteen million, five hundred five thousand, four hundred twenty-two".