52731072 has 84 divisors (see below), whose sum is σ = 154731720. Its totient is φ = 17160192.

The previous prime is 52731067. The next prime is 52731079. The reversal of 52731072 is 27013725.

It is not an unprimeable number, because it can be changed into a prime (52731079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23704 + ... + 25832.

Almost surely, 2^52731072 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 52731072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77365860).

52731072 is an abundant number, since it is smaller than the sum of its proper divisors (102000648).

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

52731072 is a wasteful number, since it uses less digits than its factorization.

52731072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190 (or 2177 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 52731072 is about 7261.6163489956. The cubic root of 52731072 is about 374.9921705032.

Adding to 52731072 its reverse (27013725), we get a palindrome (79744797).

The spelling of 52731072 in words is "fifty-two million, seven hundred thirty-one thousand, seventy-two".