257063467 has 2 divisors, whose sum is σ = 257063468. Its totient is φ = 257063466.

The previous prime is 257063461. The next prime is 257063497. The reversal of 257063467 is 764360752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257063467 - 2³ = 257063459 is a prime.

It is not a weakly prime, because it can be changed into another prime (257063461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128531733 + 128531734.

It is an arithmetic number, because the mean of its divisors is an integer number (128531734).

Almost surely, 2^257063467 is an apocalyptic number.

257063467 is a deficient number, since it is larger than the sum of its proper divisors (1).

257063467 is an equidigital number, since it uses as much as digits as its factorization.

257063467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 257063467 is about 16033.1989010303. The cubic root of 257063467 is about 635.8384501607.

The spelling of 257063467 in words is "two hundred fifty-seven million, sixty-three thousand, four hundred sixty-seven".