560981257 has 2 divisors, whose sum is σ = 560981258. Its totient is φ = 560981256.

The previous prime is 560981233. The next prime is 560981261. The reversal of 560981257 is 752189065.

560981257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331640521 + 229340736 = 18211^2 + 15144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-560981257 is a prime.

It is not a weakly prime, because it can be changed into another prime (560981207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280490628 + 280490629.

It is an arithmetic number, because the mean of its divisors is an integer number (280490629).

Almost surely, 2^560981257 is an apocalyptic number.

It is an amenable number.

560981257 is a deficient number, since it is larger than the sum of its proper divisors (1).

560981257 is an equidigital number, since it uses as much as digits as its factorization.

560981257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 560981257 is about 23685.0428963091. The cubic root of 560981257 is about 824.7382123780.

The spelling of 560981257 in words is "five hundred sixty million, nine hundred eighty-one thousand, two hundred fifty-seven".