257455332722087 has 2 divisors, whose sum is σ = 257455332722088. Its totient is φ = 257455332722086.

The previous prime is 257455332722051. The next prime is 257455332722131. The reversal of 257455332722087 is 780227233554752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257455332722087 - 2³² = 257451037754791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257455332772087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128727666361043 + 128727666361044.

It is an arithmetic number, because the mean of its divisors is an integer number (128727666361044).

Almost surely, 2^{257455332722087} is an apocalyptic number.

257455332722087 is a deficient number, since it is larger than the sum of its proper divisors (1).

257455332722087 is an equidigital number, since it uses as much as digits as its factorization.

257455332722087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568000, while the sum is 62.

The spelling of 257455332722087 in words is "two hundred fifty-seven trillion, four hundred fifty-five billion, three hundred thirty-two million, seven hundred twenty-two thousand, eighty-seven".