53322500 has 120 divisors (see below), whose sum is σ = 145903296. Its totient is φ = 16560000.

The previous prime is 53322497. The next prime is 53322541. The reversal of 53322500 is 522335.

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

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 39 ways as a sum of consecutive naturals, for example, 192362 + ... + 192638.

Almost surely, 2^53322500 is an apocalyptic number.

53322500 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 53322500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72951648).

53322500 is an abundant number, since it is smaller than the sum of its proper divisors (92580796).

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

53322500 is a wasteful number, since it uses less digits than its factorization.

53322500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 53322500 is about 7302.2256881036. The cubic root of 53322500 is about 376.3889234341.

Adding to 53322500 its reverse (522335), we get a palindrome (53844835).

The spelling of 53322500 in words is "fifty-three million, three hundred twenty-two thousand, five hundred".