52031613 has 8 divisors (see below), whose sum is σ = 69538176. Its totient is φ = 34606400.

The previous prime is 52031593. The next prime is 52031669. The reversal of 52031613 is 31613025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52031613 - 2⁶ = 52031549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52031613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52031513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18828 + ... + 21413.

It is an arithmetic number, because the mean of its divisors is an integer number (8692272).

Almost surely, 2^52031613 is an apocalyptic number.

It is an amenable number.

52031613 is a deficient number, since it is larger than the sum of its proper divisors (17506563).

52031613 is a wasteful number, since it uses less digits than its factorization.

52031613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40675.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 52031613 is about 7213.2941850447. The cubic root of 52031613 is about 373.3267387405.

Adding to 52031613 its reverse (31613025), we get a palindrome (83644638).

The spelling of 52031613 in words is "fifty-two million, thirty-one thousand, six hundred thirteen".