53563500 has 72 divisors (see below), whose sum is σ = 168989184. Its totient is φ = 14282400.

The previous prime is 53563453. The next prime is 53563519. The reversal of 53563500 is 536535.

It is a happy number.

53563500 is a `hidden beast` number, since 53 + 563 + 50 + 0 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1452 + ... + 10451.

It is an arithmetic number, because the mean of its divisors is an integer number (2347072).

Almost surely, 2^53563500 is an apocalyptic number.

53563500 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 53563500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84494592).

53563500 is an abundant number, since it is smaller than the sum of its proper divisors (115425684).

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

53563500 is a wasteful number, since it uses less digits than its factorization.

53563500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11928 (or 11913 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 53563500 is about 7318.7089025319. The cubic root of 53563500 is about 376.9551222768.

The spelling of 53563500 in words is "fifty-three million, five hundred sixty-three thousand, five hundred".