53225216 has 72 divisors (see below), whose sum is σ = 118985328. Its totient is φ = 23552000.

The previous prime is 53225201. The next prime is 53225219. The reversal of 53225216 is 61252235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53225219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115226 + ... + 115686.

It is an arithmetic number, because the mean of its divisors is an integer number (1652574).

Almost surely, 2^53225216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53225216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59492664).

53225216 is an abundant number, since it is smaller than the sum of its proper divisors (65760112).

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

53225216 is a wasteful number, since it uses less digits than its factorization.

53225216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 515 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 53225216 is about 7295.5613903249. The cubic root of 53225216 is about 376.1598837169.

The spelling of 53225216 in words is "fifty-three million, two hundred twenty-five thousand, two hundred sixteen".