52135831 has 16 divisors (see below), whose sum is σ = 59977728. Its totient is φ = 44877600.

The previous prime is 52135817. The next prime is 52135841. The reversal of 52135831 is 13853125.

It is a cyclic number.

It is not a de Polignac number, because 52135831 - 2¹⁵ = 52103063 is a prime.

It is a super-2 number, since 2×52135831² = 5436289748121122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52135831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52135841) 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, 14401 + ... + 17653.

It is an arithmetic number, because the mean of its divisors is an integer number (3748608).

Almost surely, 2^52135831 is an apocalyptic number.

52135831 is a deficient number, since it is larger than the sum of its proper divisors (7841897).

52135831 is a wasteful number, since it uses less digits than its factorization.

52135831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342.

The product of its digits is 3600, while the sum is 28.

The square root of 52135831 is about 7220.5145938499. The cubic root of 52135831 is about 373.5758271688.

Adding to 52135831 its reverse (13853125), we get a palindrome (65988956).

The spelling of 52135831 in words is "fifty-two million, one hundred thirty-five thousand, eight hundred thirty-one".