553126500 has 144 divisors (see below), whose sum is σ = 1763654256. Its totient is φ = 145920000.

The previous prime is 553126489. The next prime is 553126507. The reversal of 553126500 is 5621355.

553126500 is a `hidden beast` number, since 5 + 5 + 3 + 1 + 2 + 650 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 82410084 + 470716416 = 9078^2 + 21696^2 .

It is not an unprimeable number, because it can be changed into a prime (553126507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 453892 + ... + 455108.

It is an arithmetic number, because the mean of its divisors is an integer number (12247599).

Almost surely, 2^553126500 is an apocalyptic number.

553126500 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 553126500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881827128).

553126500 is an abundant number, since it is smaller than the sum of its proper divisors (1210527756).

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

553126500 is a wasteful number, since it uses less digits than its factorization.

553126500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 553126500 is about 23518.6415424021. The cubic root of 553126500 is about 820.8708277913.

Adding to 553126500 its reverse (5621355), we get a palindrome (558747855).

The spelling of 553126500 in words is "five hundred fifty-three million, one hundred twenty-six thousand, five hundred".