550251144440 has 32 divisors (see below), whose sum is σ = 1253736792000. Its totient is φ = 217314374784.

The previous prime is 550251144437. The next prime is 550251144491. The reversal of 550251144440 is 44441152055.

It is a self number, because there is not a number n which added to its sum of digits gives 550251144440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87061895 + ... + 87068214.

It is an arithmetic number, because the mean of its divisors is an integer number (39179274750).

Almost surely, 2^550251144440 is an apocalyptic number.

It is an amenable number.

550251144440 is an abundant number, since it is smaller than the sum of its proper divisors (703485647560).

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

550251144440 is a wasteful number, since it uses less digits than its factorization.

550251144440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174130199 (or 174130195 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 550251144440 its reverse (44441152055), we get a palindrome (594692296495).

The spelling of 550251144440 in words is "five hundred fifty billion, two hundred fifty-one million, one hundred forty-four thousand, four hundred forty".