257676011 has 2 divisors, whose sum is σ = 257676012. Its totient is φ = 257676010.

The previous prime is 257676007. The next prime is 257676019. The reversal of 257676011 is 110676752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257676011 - 2² = 257676007 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (257676019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128838005 + 128838006.

It is an arithmetic number, because the mean of its divisors is an integer number (128838006).

Almost surely, 2^257676011 is an apocalyptic number.

257676011 is a deficient number, since it is larger than the sum of its proper divisors (1).

257676011 is an equidigital number, since it uses as much as digits as its factorization.

257676011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 257676011 is about 16052.2898989521. The cubic root of 257676011 is about 636.3430856944.

It can be divided in two parts, 2576 and 76011, that added together give a palindrome (78587).

The spelling of 257676011 in words is "two hundred fifty-seven million, six hundred seventy-six thousand, eleven".