52247268 has 90 divisors (see below), whose sum is σ = 141464246. Its totient is φ = 16811712.

The previous prime is 52247263. The next prime is 52247281. The reversal of 52247268 is 86274225.

52247268 is a `hidden beast` number, since 522 + 4 + 72 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 6441444 = 6768^2 + 2538^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (52247263) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 715680 + ... + 715752.

Almost surely, 2^52247268 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 52247268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70732123).

52247268 is an abundant number, since it is smaller than the sum of its proper divisors (89216978).

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

52247268 is a wasteful number, since it uses less digits than its factorization.

52247268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 125 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 52247268 is about 7228.2271685386. The cubic root of 52247268 is about 373.8418025592.

The spelling of 52247268 in words is "fifty-two million, two hundred forty-seven thousand, two hundred sixty-eight".