260263057 has 2 divisors, whose sum is σ = 260263058. Its totient is φ = 260263056.

The previous prime is 260263049. The next prime is 260263061. The reversal of 260263057 is 750362062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259822161 + 440896 = 16119^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 260263057 - 2³ = 260263049 is a prime.

It is not a weakly prime, because it can be changed into another prime (260263037) 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, 130131528 + 130131529.

It is an arithmetic number, because the mean of its divisors is an integer number (130131529).

Almost surely, 2^260263057 is an apocalyptic number.

It is an amenable number.

260263057 is a deficient number, since it is larger than the sum of its proper divisors (1).

260263057 is an equidigital number, since it uses as much as digits as its factorization.

260263057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 260263057 is about 16132.6704856945. The cubic root of 260263057 is about 638.4656089266.

The spelling of 260263057 in words is "two hundred sixty million, two hundred sixty-three thousand, fifty-seven".