52731042 has 192 divisors, whose sum is σ = 151787520. Its totient is φ = 11860992.

The previous prime is 52731017. The next prime is 52731047. The reversal of 52731042 is 24013725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52731047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2292643 + ... + 2292665.

It is an arithmetic number, because the mean of its divisors is an integer number (790560).

Almost surely, 2^52731042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52731042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75893760).

52731042 is an abundant number, since it is smaller than the sum of its proper divisors (99056478).

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

52731042 is a wasteful number, since it uses less digits than its factorization.

52731042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 52731042 is about 7261.6142833395. The cubic root of 52731042 is about 374.9920993891.

Adding to 52731042 its reverse (24013725), we get a palindrome (76744767).

The spelling of 52731042 in words is "fifty-two million, seven hundred thirty-one thousand, forty-two".