551126140 has 24 divisors (see below), whose sum is σ = 1173668832. Its totient is φ = 217344960.

The previous prime is 551126099. The next prime is 551126159. The reversal of 551126140 is 41621155.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 192639 + ... + 195478.

It is an arithmetic number, because the mean of its divisors is an integer number (48902868).

Almost surely, 2^551126140 is an apocalyptic number.

It is an amenable number.

551126140 is an abundant number, since it is smaller than the sum of its proper divisors (622542692).

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

551126140 is a wasteful number, since it uses less digits than its factorization.

551126140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388197 (or 388195 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 551126140 is about 23476.0759071869. The cubic root of 551126140 is about 819.8800835946.

Adding to 551126140 its reverse (41621155), we get a palindrome (592747295).

The spelling of 551126140 in words is "five hundred fifty-one million, one hundred twenty-six thousand, one hundred forty".