550543523121 has 24 divisors (see below), whose sum is σ = 814054498400. Its totient is φ = 358347519936.

The previous prime is 550543523113. The next prime is 550543523171. The reversal of 550543523121 is 121325345055.

550543523121 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 4 + 3 + 523 + 121 = 666.

550543523121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550543523121 - 2³ = 550543523113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550543523171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 666405 + ... + 1243053.

Almost surely, 2^550543523121 is an apocalyptic number.

It is an amenable number.

550543523121 is a deficient number, since it is larger than the sum of its proper divisors (263510975279).

550543523121 is a wasteful number, since it uses less digits than its factorization.

550543523121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579165 (or 579162 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 550543523121 its reverse (121325345055), we get a palindrome (671868868176).

The spelling of 550543523121 in words is "five hundred fifty billion, five hundred forty-three million, five hundred twenty-three thousand, one hundred twenty-one".