551551221144033 has 16 divisors (see below), whose sum is σ = 802331814441216. Its totient is φ = 334242012036240.

The previous prime is 551551221143917. The next prime is 551551221144047. The reversal of 551551221144033 is 330441122155155.

It is not a de Polignac number, because 551551221144033 - 2²⁴ = 551551204366817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551551221144233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786027091 + ... + 786728472.

It is an arithmetic number, because the mean of its divisors is an integer number (50145738402576).

Almost surely, 2^{551551221144033} is an apocalyptic number.

It is an amenable number.

551551221144033 is a deficient number, since it is larger than the sum of its proper divisors (250780593297183).

551551221144033 is a wasteful number, since it uses less digits than its factorization.

551551221144033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572766204.

The product of its (nonzero) digits is 360000, while the sum is 42.

Adding to 551551221144033 its reverse (330441122155155), we get a palindrome (881992343299188).

The spelling of 551551221144033 in words is "five hundred fifty-one trillion, five hundred fifty-one billion, two hundred twenty-one million, one hundred forty-four thousand, thirty-three".