551353201121 has 8 divisors (see below), whose sum is σ = 578178607080. Its totient is φ = 525048676992.

The previous prime is 551353201109. The next prime is 551353201151. The reversal of 551353201121 is 121102353155.

It can be written as a sum of positive squares in 4 ways, for example, as 32320848400 + 519032352721 = 179780^2 + 720439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551353201121 - 2³⁸ = 276475294177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (551353201151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130218290 + ... + 130222523.

It is an arithmetic number, because the mean of its divisors is an integer number (72272325885).

Almost surely, 2^551353201121 is an apocalyptic number.

It is an amenable number.

551353201121 is a deficient number, since it is larger than the sum of its proper divisors (26825405959).

551353201121 is a wasteful number, since it uses less digits than its factorization.

551353201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260440915.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 551353201121 its reverse (121102353155), we get a palindrome (672455554276).

The spelling of 551353201121 in words is "five hundred fifty-one billion, three hundred fifty-three million, two hundred one thousand, one hundred twenty-one".