53203500 has 192 divisors, whose sum is σ = 197084160. Its totient is φ = 12139200.

The previous prime is 53203379. The next prime is 53203511. The reversal of 53203500 is 530235.

53203500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53203500² = 5661224824500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 94219 + ... + 94781.

It is an arithmetic number, because the mean of its divisors is an integer number (1026480).

Almost surely, 2^53203500 is an apocalyptic number.

53203500 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 53203500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98542080).

53203500 is an abundant number, since it is smaller than the sum of its proper divisors (143880660).

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

53203500 is a wasteful number, since it uses less digits than its factorization.

53203500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 53203500 is about 7294.0729362956. The cubic root of 53203500 is about 376.1087187500.

Adding to 53203500 its reverse (530235), we get a palindrome (53733735).

The spelling of 53203500 in words is "fifty-three million, two hundred three thousand, five hundred".