52681481 has 2 divisors, whose sum is σ = 52681482. Its totient is φ = 52681480.

The previous prime is 52681459. The next prime is 52681537. The reversal of 52681481 is 18418625.

52681481 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., 34703881 + 17977600 = 5891^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 52681481 - 2¹⁸ = 52419337 is a prime.

It is a super-2 number, since 2×52681481² = 5550676880706722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52681411) 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, 26340740 + 26340741.

It is an arithmetic number, because the mean of its divisors is an integer number (26340741).

Almost surely, 2^52681481 is an apocalyptic number.

It is an amenable number.

52681481 is a deficient number, since it is larger than the sum of its proper divisors (1).

52681481 is an equidigital number, since it uses as much as digits as its factorization.

52681481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 35.

The square root of 52681481 is about 7258.2009478934. The cubic root of 52681481 is about 374.8745796870.

The spelling of 52681481 in words is "fifty-two million, six hundred eighty-one thousand, four hundred eighty-one".