551251013144 has 32 divisors (see below), whose sum is σ = 1113480058320. Its totient is φ = 254337361536.

The previous prime is 551251013141. The next prime is 551251013231. The reversal of 551251013144 is 441310152155.

It is a self number, because there is not a number n which added to its sum of digits gives 551251013144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551251013141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588734 + ... + 1203789.

Almost surely, 2^551251013144 is an apocalyptic number.

It is an amenable number.

551251013144 is an abundant number, since it is smaller than the sum of its proper divisors (562229045176).

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

551251013144 is a wasteful number, since it uses less digits than its factorization.

551251013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795499 (or 1795495 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 551251013144 its reverse (441310152155), we get a palindrome (992561165299).

The spelling of 551251013144 in words is "five hundred fifty-one billion, two hundred fifty-one million, thirteen thousand, one hundred forty-four".