551325121011444 has 24 divisors (see below), whose sum is σ = 1385381073311200. Its totient is φ = 169638498772704.

The previous prime is 551325121011407. The next prime is 551325121011491. The reversal of 551325121011444 is 444110121523155.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 1767067695394 + ... + 1767067695705.

Almost surely, 2^{551325121011444} is an apocalyptic number.

It is an amenable number.

551325121011444 is an abundant number, since it is smaller than the sum of its proper divisors (834055952299756).

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

551325121011444 is a wasteful number, since it uses less digits than its factorization.

551325121011444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534135391119 (or 3534135391117 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

Adding to 551325121011444 its reverse (444110121523155), we get a palindrome (995435242534599).

The spelling of 551325121011444 in words is "five hundred fifty-one trillion, three hundred twenty-five billion, one hundred twenty-one million, eleven thousand, four hundred forty-four".