553421040 has 80 divisors (see below), whose sum is σ = 1727079936. Its totient is φ = 146592000.

The previous prime is 553421017. The next prime is 553421041. The reversal of 553421040 is 40124355.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 553421040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553421041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28605 + ... + 43875.

Almost surely, 2^553421040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863539968).

553421040 is an abundant number, since it is smaller than the sum of its proper divisors (1173658896).

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

553421040 is a wasteful number, since it uses less digits than its factorization.

553421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15438 (or 15432 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 553421040 is about 23524.9025502764. The cubic root of 553421040 is about 821.0165065770.

Adding to 553421040 its reverse (40124355), we get a palindrome (593545395).

The spelling of 553421040 in words is "five hundred fifty-three million, four hundred twenty-one thousand, forty".