553531404 has 24 divisors (see below), whose sum is σ = 1303006320. Its totient is φ = 182877184.

The previous prime is 553531393. The next prime is 553531457. The reversal of 553531404 is 404135355.

It is a super-2 number, since 2×553531404² = 612794030428422432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202749 + ... + 205460.

It is an arithmetic number, because the mean of its divisors is an integer number (54291930).

Almost surely, 2^553531404 is an apocalyptic number.

It is an amenable number.

553531404 is an abundant number, since it is smaller than the sum of its proper divisors (749474916).

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

553531404 is a wasteful number, since it uses less digits than its factorization.

553531404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408329 (or 408327 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 553531404 is about 23527.2481178739. The cubic root of 553531404 is about 821.0710790372.

Adding to 553531404 its reverse (404135355), we get a palindrome (957666759).

The spelling of 553531404 in words is "five hundred fifty-three million, five hundred thirty-one thousand, four hundred four".