2568145061 has 2 divisors, whose sum is σ = 2568145062. Its totient is φ = 2568145060.

The previous prime is 2568145057. The next prime is 2568145067. The reversal of 2568145061 is 1605418652.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1881390625 + 686754436 = 43375^2 + 26206^2 .

It is a cyclic number.

It is not a de Polignac number, because 2568145061 - 2² = 2568145057 is a prime.

It is a super-3 number, since 3×2568145061³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2568145067) 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, 1284072530 + 1284072531.

It is an arithmetic number, because the mean of its divisors is an integer number (1284072531).

Almost surely, 2^2568145061 is an apocalyptic number.

It is an amenable number.

2568145061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568145061 is an equidigital number, since it uses as much as digits as its factorization.

2568145061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 2568145061 is about 50676.8690923186. The cubic root of 2568145061 is about 1369.4300399654.

The spelling of 2568145061 in words is "two billion, five hundred sixty-eight million, one hundred forty-five thousand, sixty-one".