553121356 has 24 divisors (see below), whose sum is σ = 989891280. Its totient is φ = 270334272.

The previous prime is 553121353. The next prime is 553121377. The reversal of 553121356 is 653121355.

It is not an unprimeable number, because it can be changed into a prime (553121351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54015 + ... + 63433.

It is an arithmetic number, because the mean of its divisors is an integer number (41245470).

Almost surely, 2^553121356 is an apocalyptic number.

It is an amenable number.

553121356 is a deficient number, since it is larger than the sum of its proper divisors (436769924).

553121356 is a wasteful number, since it uses less digits than its factorization.

553121356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9753 (or 9751 counting only the distinct ones).

The product of its digits is 13500, while the sum is 31.

The square root of 553121356 is about 23518.5321820899. The cubic root of 553121356 is about 820.8682831217.

Subtracting 553121356 from its reverse (653121355), we obtain a palindrome (99999999).

The spelling of 553121356 in words is "five hundred fifty-three million, one hundred twenty-one thousand, three hundred fifty-six".