553043121 has 4 divisors (see below), whose sum is σ = 737390832. Its totient is φ = 368695412.

The previous prime is 553043111. The next prime is 553043129. The reversal of 553043121 is 121340355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 553043121 - 2⁷ = 553042993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 553043091 and 553043100.

It is not an unprimeable number, because it can be changed into a prime (553043129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92173851 + ... + 92173856.

It is an arithmetic number, because the mean of its divisors is an integer number (184347708).

Almost surely, 2^553043121 is an apocalyptic number.

It is an amenable number.

553043121 is a deficient number, since it is larger than the sum of its proper divisors (184347711).

553043121 is a wasteful number, since it uses less digits than its factorization.

553043121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184347710.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 553043121 is about 23516.8688604584. The cubic root of 553043121 is about 820.8295793439.

Adding to 553043121 its reverse (121340355), we get a palindrome (674383476).

The spelling of 553043121 in words is "five hundred fifty-three million, forty-three thousand, one hundred twenty-one".