553012400 has 60 divisors (see below), whose sum is σ = 1344700392. Its totient is φ = 218526720.

The previous prime is 553012399. The next prime is 553012409. The reversal of 553012400 is 4210355.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (553012409) 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 11 ways as a sum of consecutive naturals, for example, 24872 + ... + 41528.

Almost surely, 2^553012400 is an apocalyptic number.

553012400 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 553012400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672350196).

553012400 is an abundant number, since it is smaller than the sum of its proper divisors (791687992).

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

553012400 is a wasteful number, since it uses less digits than its factorization.

553012400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16758 (or 16747 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 553012400 is about 23516.2156819502. The cubic root of 553012400 is about 820.8143803045.

Adding to 553012400 its reverse (4210355), we get a palindrome (557222755).

The spelling of 553012400 in words is "five hundred fifty-three million, twelve thousand, four hundred".