551400443140 has 24 divisors (see below), whose sum is σ = 1160215885080. Its totient is φ = 220126852608.

The previous prime is 551400443093. The next prime is 551400443159. The reversal of 551400443140 is 41344004155.

It can be written as a sum of positive squares in 4 ways, for example, as 121526143236 + 429874299904 = 348606^2 + 655648^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27072357 + ... + 27092716.

It is an arithmetic number, because the mean of its divisors is an integer number (48342328545).

Almost surely, 2^551400443140 is an apocalyptic number.

It is an amenable number.

551400443140 is an abundant number, since it is smaller than the sum of its proper divisors (608815441940).

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

551400443140 is a wasteful number, since it uses less digits than its factorization.

551400443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54165591 (or 54165589 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 551400443140 its reverse (41344004155), we get a palindrome (592744447295).

The spelling of 551400443140 in words is "five hundred fifty-one billion, four hundred million, four hundred forty-three thousand, one hundred forty".