553440432 has 40 divisors (see below), whose sum is σ = 1432765440. Its totient is φ = 184087360.

The previous prime is 553440409. The next prime is 553440449. The reversal of 553440432 is 234044355.

It is a self number, because there is not a number n which added to its sum of digits gives 553440432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10957 + ... + 35027.

It is an arithmetic number, because the mean of its divisors is an integer number (35819136).

Almost surely, 2^553440432 is an apocalyptic number.

It is an amenable number.

553440432 is an abundant number, since it is smaller than the sum of its proper divisors (879325008).

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

553440432 is a wasteful number, since it uses less digits than its factorization.

553440432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24561 (or 24555 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 553440432 is about 23525.3147056527. The cubic root of 553440432 is about 821.0260960004.

Adding to 553440432 its reverse (234044355), we get a palindrome (787484787).

The spelling of 553440432 in words is "five hundred fifty-three million, four hundred forty thousand, four hundred thirty-two".