260542277 has 2 divisors, whose sum is σ = 260542278. Its totient is φ = 260542276.

The previous prime is 260542253. The next prime is 260542279. The reversal of 260542277 is 772245062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159921316 + 100620961 = 12646^2 + 10031^2 .

It is a cyclic number.

It is not a de Polignac number, because 260542277 - 2⁶ = 260542213 is a prime.

Together with 260542279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260542279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130271138 + 130271139.

It is an arithmetic number, because the mean of its divisors is an integer number (130271139).

Almost surely, 2^260542277 is an apocalyptic number.

It is an amenable number.

260542277 is a deficient number, since it is larger than the sum of its proper divisors (1).

260542277 is an equidigital number, since it uses as much as digits as its factorization.

260542277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 260542277 is about 16141.3220338360. The cubic root of 260542277 is about 638.6938506332.

The spelling of 260542277 in words is "two hundred sixty million, five hundred forty-two thousand, two hundred seventy-seven".