5725981 has 2 divisors, whose sum is σ = 5725982. Its totient is φ = 5725980.

The previous prime is 5725943. The next prime is 5726023. The reversal of 5725981 is 1895275.

5725981 is digitally balanced in base 3, 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., 5405625 + 320356 = 2325^2 + 566^2 .

It is a cyclic number.

It is not a de Polignac number, because 5725981 - 2⁹ = 5725469 is a prime.

It is a super-2 number, since 2×5725981² = 65573716824722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5725981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5725081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2862990 + 2862991.

It is an arithmetic number, because the mean of its divisors is an integer number (2862991).

Almost surely, 2^5725981 is an apocalyptic number.

It is an amenable number.

5725981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5725981 is an equidigital number, since it uses as much as digits as its factorization.

5725981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 37.

The square root of 5725981 is about 2392.9022127952. The cubic root of 5725981 is about 178.9025925716.

The spelling of 5725981 in words is "five million, seven hundred twenty-five thousand, nine hundred eighty-one".