52245216 has 96 divisors (see below), whose sum is σ = 161390880. Its totient is φ = 16386048.

The previous prime is 52245203. The next prime is 52245217. The reversal of 52245216 is 61254225.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 52245216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52245217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12910 + ... + 16466.

It is an arithmetic number, because the mean of its divisors is an integer number (1681155).

Almost surely, 2^52245216 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 52245216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80695440).

52245216 is an abundant number, since it is smaller than the sum of its proper divisors (109145664).

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

52245216 is a wasteful number, since it uses less digits than its factorization.

52245216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593 (or 3579 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 52245216 is about 7228.0852236260. The cubic root of 52245216 is about 373.8369083102.

Subtracting 52245216 from its reverse (61254225), we obtain a palindrome (9009009).

It can be divided in two parts, 5224 and 5216, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 52245216 in words is "fifty-two million, two hundred forty-five thousand, two hundred sixteen".