52447332 has 48 divisors (see below), whose sum is σ = 141962240. Its totient is φ = 14759712.

The previous prime is 52447331. The next prime is 52447349. The reversal of 52447332 is 23374425.

It is a self number, because there is not a number n which added to its sum of digits gives 52447332.

It is not an unprimeable number, because it can be changed into a prime (52447331) 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, 969 + ... + 10287.

Almost surely, 2^52447332 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 52447332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70981120).

52447332 is an abundant number, since it is smaller than the sum of its proper divisors (89514908).

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

52447332 is a wasteful number, since it uses less digits than its factorization.

52447332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9400 (or 9398 counting only the distinct ones).

The product of its digits is 20160, while the sum is 30.

The square root of 52447332 is about 7242.0530238324. The cubic root of 52447332 is about 374.3183635197.

The spelling of 52447332 in words is "fifty-two million, four hundred forty-seven thousand, three hundred thirty-two".