52030981 has 2 divisors, whose sum is σ = 52030982. Its totient is φ = 52030980.

The previous prime is 52030967. The next prime is 52031003. The reversal of 52030981 is 18903025.

52030981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43678881 + 8352100 = 6609^2 + 2890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52030981 is a prime.

It is a super-2 number, since 2×52030981² = 5414445967644722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52030921) 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, 26015490 + 26015491.

It is an arithmetic number, because the mean of its divisors is an integer number (26015491).

Almost surely, 2^52030981 is an apocalyptic number.

It is an amenable number.

52030981 is a deficient number, since it is larger than the sum of its proper divisors (1).

52030981 is an equidigital number, since it uses as much as digits as its factorization.

52030981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 52030981 is about 7213.2503769105. The cubic root of 52030981 is about 373.3252272014.

The spelling of 52030981 in words is "fifty-two million, thirty thousand, nine hundred eighty-one".