260558957 has 2 divisors, whose sum is σ = 260558958. Its totient is φ = 260558956.

The previous prime is 260558917. The next prime is 260558993. The reversal of 260558957 is 759855062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230462761 + 30096196 = 15181^2 + 5486^2 .

It is a cyclic number.

It is not a de Polignac number, because 260558957 - 2¹⁰ = 260557933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260558917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130279478 + 130279479.

It is an arithmetic number, because the mean of its divisors is an integer number (130279479).

Almost surely, 2^260558957 is an apocalyptic number.

It is an amenable number.

260558957 is a deficient number, since it is larger than the sum of its proper divisors (1).

260558957 is an equidigital number, since it uses as much as digits as its factorization.

260558957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756000, while the sum is 47.

The square root of 260558957 is about 16141.8387118692. The cubic root of 260558957 is about 638.7074801373.

The spelling of 260558957 in words is "two hundred sixty million, five hundred fifty-eight thousand, nine hundred fifty-seven".