52072931 has 2 divisors, whose sum is σ = 52072932. Its totient is φ = 52072930.

The previous prime is 52072913. The next prime is 52072961. The reversal of 52072931 is 13927025.

52072931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (52072913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52072931 is a prime.

It is a super-2 number, since 2×52072931² = 5423180285861522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 52072894 and 52072903.

It is not a weakly prime, because it can be changed into another prime (52072961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26036465 + 26036466.

It is an arithmetic number, because the mean of its divisors is an integer number (26036466).

Almost surely, 2^52072931 is an apocalyptic number.

52072931 is a deficient number, since it is larger than the sum of its proper divisors (1).

52072931 is an equidigital number, since it uses as much as digits as its factorization.

52072931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 52072931 is about 7216.1576340875. The cubic root of 52072931 is about 373.4255314558.

Adding to 52072931 its reverse (13927025), we get a palindrome (65999956).

The spelling of 52072931 in words is "fifty-two million, seventy-two thousand, nine hundred thirty-one".