260620513 has 2 divisors, whose sum is σ = 260620514. Its totient is φ = 260620512.

The previous prime is 260620403. The next prime is 260620517. The reversal of 260620513 is 315026062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234487969 + 26132544 = 15313^2 + 5112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260620513 is a prime.

It is not a weakly prime, because it can be changed into another prime (260620517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130310256 + 130310257.

It is an arithmetic number, because the mean of its divisors is an integer number (130310257).

Almost surely, 2^260620513 is an apocalyptic number.

It is an amenable number.

260620513 is a deficient number, since it is larger than the sum of its proper divisors (1).

260620513 is an equidigital number, since it uses as much as digits as its factorization.

260620513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 260620513 is about 16143.7453213311. The cubic root of 260620513 is about 638.7577735301.

Adding to 260620513 its reverse (315026062), we get a palindrome (575646575).

The spelling of 260620513 in words is "two hundred sixty million, six hundred twenty thousand, five hundred thirteen".