52071881 has 2 divisors, whose sum is σ = 52071882. Its totient is φ = 52071880.

The previous prime is 52071841. The next prime is 52071883. The reversal of 52071881 is 18817025.

It is a happy number.

52071881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52070656 + 1225 = 7216^2 + 35^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52071881 is a prime.

It is a super-2 number, since 2×52071881² = 5422961581756322, which contains 22 as substring.

Together with 52071883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52071883) 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, 26035940 + 26035941.

It is an arithmetic number, because the mean of its divisors is an integer number (26035941).

Almost surely, 2^52071881 is an apocalyptic number.

It is an amenable number.

52071881 is a deficient number, since it is larger than the sum of its proper divisors (1).

52071881 is an equidigital number, since it uses as much as digits as its factorization.

52071881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 52071881 is about 7216.0848803212. The cubic root of 52071881 is about 373.4230215181.

The spelling of 52071881 in words is "fifty-two million, seventy-one thousand, eight hundred eighty-one".