260450261 has 2 divisors, whose sum is σ = 260450262. Its totient is φ = 260450260.

The previous prime is 260450237. The next prime is 260450263. The reversal of 260450261 is 162054062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205779025 + 54671236 = 14345^2 + 7394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260450261 is a prime.

Together with 260450263, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260450261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260450263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130225130 + 130225131.

It is an arithmetic number, because the mean of its divisors is an integer number (130225131).

Almost surely, 2^260450261 is an apocalyptic number.

It is an amenable number.

260450261 is a deficient number, since it is larger than the sum of its proper divisors (1).

260450261 is an equidigital number, since it uses as much as digits as its factorization.

260450261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 260450261 is about 16138.4714579789. The cubic root of 260450261 is about 638.6186523787.

The spelling of 260450261 in words is "two hundred sixty million, four hundred fifty thousand, two hundred sixty-one".