553533400 has 96 divisors (see below), whose sum is σ = 1501020000. Its totient is φ = 189759360.

The previous prime is 553533397. The next prime is 553533401. The reversal of 553533400 is 4335355.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553533401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64566 + ... + 72634.

It is an arithmetic number, because the mean of its divisors is an integer number (15635625).

Almost surely, 2^553533400 is an apocalyptic number.

553533400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553533400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750510000).

553533400 is an abundant number, since it is smaller than the sum of its proper divisors (947486600).

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

553533400 is a wasteful number, since it uses less digits than its factorization.

553533400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8106 (or 8083 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 553533400 is about 23527.2905367363. The cubic root of 553533400 is about 821.0720659465.

Adding to 553533400 its reverse (4335355), we get a palindrome (557868755).

The spelling of 553533400 in words is "five hundred fifty-three million, five hundred thirty-three thousand, four hundred".