53250320 has 20 divisors (see below), whose sum is σ = 123807180. Its totient is φ = 21300096.

The previous prime is 53250317. The next prime is 53250347. The reversal of 53250320 is 2305235.

It can be written as a sum of positive squares in 2 ways, for example, as 6574096 + 46676224 = 2564^2 + 6832^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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

It is a junction number, because it is equal to n+sod(n) for n = 53250292 and 53250301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332735 + ... + 332894.

It is an arithmetic number, because the mean of its divisors is an integer number (6190359).

Almost surely, 2^53250320 is an apocalyptic number.

It is an amenable number.

53250320 is an abundant number, since it is smaller than the sum of its proper divisors (70556860).

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

53250320 is a wasteful number, since it uses less digits than its factorization.

53250320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665642 (or 665636 counting only the distinct ones).

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

The square root of 53250320 is about 7297.2816856690. The cubic root of 53250320 is about 376.2190137946.

Adding to 53250320 its reverse (2305235), we get a palindrome (55555555).

The spelling of 53250320 in words is "fifty-three million, two hundred fifty thousand, three hundred twenty".