553521132 has 36 divisors (see below), whose sum is σ = 1405054560. Its totient is φ = 183732192.

The previous prime is 553521131. The next prime is 553521149. The reversal of 553521132 is 231125355.

It is a happy number.

553521132 is a `hidden beast` number, since 5 + 5 + 3 + 521 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×553521132² = 612771287141122848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 553521096 and 553521105.

It is not an unprimeable number, because it can be changed into a prime (553521131) 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 11 ways as a sum of consecutive naturals, for example, 23563 + ... + 40770.

Almost surely, 2^553521132 is an apocalyptic number.

It is an amenable number.

553521132 is an abundant number, since it is smaller than the sum of its proper divisors (851533428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

553521132 is a wasteful number, since it uses less digits than its factorization.

553521132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64582 (or 64577 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 553521132 is about 23527.0298167873. The cubic root of 553521132 is about 821.0660000756.

Adding to 553521132 its reverse (231125355), we get a palindrome (784646487).

The spelling of 553521132 in words is "five hundred fifty-three million, five hundred twenty-one thousand, one hundred thirty-two".