551105122 has 4 divisors (see below), whose sum is σ = 826657686. Its totient is φ = 275552560.

The previous prime is 551105117. The next prime is 551105123. The reversal of 551105122 is 221501155.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 509901561 + 41203561 = 22581^2 + 6419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 551105093 and 551105102.

It is not an unprimeable number, because it can be changed into a prime (551105123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137776279 + ... + 137776282.

Almost surely, 2^551105122 is an apocalyptic number.

551105122 is a deficient number, since it is larger than the sum of its proper divisors (275552564).

551105122 is a wasteful number, since it uses less digits than its factorization.

551105122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275552563.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 551105122 is about 23475.6282557038. The cubic root of 551105122 is about 819.8696610208.

Adding to 551105122 its reverse (221501155), we get a palindrome (772606277).

The spelling of 551105122 in words is "five hundred fifty-one million, one hundred five thousand, one hundred twenty-two".