52115881 has 2 divisors, whose sum is σ = 52115882. Its totient is φ = 52115880.

The previous prime is 52115839. The next prime is 52115887. The reversal of 52115881 is 18851125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42250000 + 9865881 = 6500^2 + 3141^2 .

It is a cyclic number.

It is not a de Polignac number, because 52115881 - 2¹¹ = 52113833 is a prime.

It is a super-2 number, since 2×52115881² = 5432130104812322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52115887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26057940 + 26057941.

It is an arithmetic number, because the mean of its divisors is an integer number (26057941).

Almost surely, 2^52115881 is an apocalyptic number.

It is an amenable number.

52115881 is a deficient number, since it is larger than the sum of its proper divisors (1).

52115881 is an equidigital number, since it uses as much as digits as its factorization.

52115881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 31.

The square root of 52115881 is about 7219.1329811827. The cubic root of 52115881 is about 373.5281709572.

The spelling of 52115881 in words is "fifty-two million, one hundred fifteen thousand, eight hundred eighty-one".