553343121 has 6 divisors (see below), whose sum is σ = 799273410. Its totient is φ = 368895408.

The previous prime is 553343111. The next prime is 553343179. The reversal of 553343121 is 121343355.

553343121 is a `hidden beast` number, since 5 + 533 + 4 + 3 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 414692496 + 138650625 = 20364^2 + 11775^2 .

It is not a de Polignac number, because 553343121 - 2¹⁴ = 553326737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (553343111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30741276 + ... + 30741293.

It is an arithmetic number, because the mean of its divisors is an integer number (133212235).

Almost surely, 2^553343121 is an apocalyptic number.

It is an amenable number.

553343121 is a deficient number, since it is larger than the sum of its proper divisors (245930289).

553343121 is a wasteful number, since it uses less digits than its factorization.

553343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61482575 (or 61482572 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 553343121 is about 23523.2463958528. The cubic root of 553343121 is about 820.9779730536.

Adding to 553343121 its reverse (121343355), we get a palindrome (674686476).

The spelling of 553343121 in words is "five hundred fifty-three million, three hundred forty-three thousand, one hundred twenty-one".