260717953 has 2 divisors, whose sum is σ = 260717954. Its totient is φ = 260717952.

The previous prime is 260717929. The next prime is 260717969. The reversal of 260717953 is 359717062.

260717953 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., 259306609 + 1411344 = 16103^2 + 1188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260717953 is a prime.

It is not a weakly prime, because it can be changed into another prime (260717923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130358976 + 130358977.

It is an arithmetic number, because the mean of its divisors is an integer number (130358977).

Almost surely, 2^260717953 is an apocalyptic number.

It is an amenable number.

260717953 is a deficient number, since it is larger than the sum of its proper divisors (1).

260717953 is an equidigital number, since it uses as much as digits as its factorization.

260717953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 260717953 is about 16146.7629263577. The cubic root of 260717953 is about 638.8373692120.

The spelling of 260717953 in words is "two hundred sixty million, seven hundred seventeen thousand, nine hundred fifty-three".