53306500 has 96 divisors (see below), whose sum is σ = 128419200. Its totient is φ = 19209600.

The previous prime is 53306471. The next prime is 53306503. The reversal of 53306500 is 560335.

It is a super-3 number, since 3×53306500³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (53306503) 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 31 ways as a sum of consecutive naturals, for example, 383431 + ... + 383569.

It is an arithmetic number, because the mean of its divisors is an integer number (1337700).

Almost surely, 2^53306500 is an apocalyptic number.

53306500 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 53306500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64209600).

53306500 is an abundant number, since it is smaller than the sum of its proper divisors (75112700).

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

53306500 is a wasteful number, since it uses less digits than its factorization.

53306500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 53306500 is about 7301.1300495197. The cubic root of 53306500 is about 376.3512731288.

Adding to 53306500 its reverse (560335), we get a palindrome (53866835).

The spelling of 53306500 in words is "fifty-three million, three hundred six thousand, five hundred".