551105140 has 12 divisors (see below), whose sum is σ = 1157320836. Its totient is φ = 220442048.

The previous prime is 551105123. The next prime is 551105141. The reversal of 551105140 is 41501155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 307932304 + 243172836 = 17548^2 + 15594^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551105141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13777609 + ... + 13777648.

It is an arithmetic number, because the mean of its divisors is an integer number (96443403).

Almost surely, 2^551105140 is an apocalyptic number.

It is an amenable number.

551105140 is an abundant number, since it is smaller than the sum of its proper divisors (606215696).

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

551105140 is a wasteful number, since it uses less digits than its factorization.

551105140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27555266 (or 27555264 counting only the distinct ones).

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

The square root of 551105140 is about 23475.6286390801. The cubic root of 551105140 is about 819.8696699469.

Adding to 551105140 its reverse (41501155), we get a palindrome (592606295).

The spelling of 551105140 in words is "five hundred fifty-one million, one hundred five thousand, one hundred forty".