553311521 has 8 divisors (see below), whose sum is σ = 665638080. Its totient is φ = 449305488.

The previous prime is 553311463. The next prime is 553311547. The reversal of 553311521 is 125113355.

It is a happy number.

553311521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 553311521 - 2¹⁰ = 553310497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553311821) 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, 2079986 + ... + 2080251.

It is an arithmetic number, because the mean of its divisors is an integer number (83204760).

Almost surely, 2^553311521 is an apocalyptic number.

It is an amenable number.

553311521 is a deficient number, since it is larger than the sum of its proper divisors (112326559).

553311521 is a wasteful number, since it uses less digits than its factorization.

553311521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160263.

The product of its digits is 2250, while the sum is 26.

The square root of 553311521 is about 23522.5747102650. The cubic root of 553311521 is about 820.9623447771.

Adding to 553311521 its reverse (125113355), we get a palindrome (678424876).

The spelling of 553311521 in words is "five hundred fifty-three million, three hundred eleven thousand, five hundred twenty-one".