257364467 has 2 divisors, whose sum is σ = 257364468. Its totient is φ = 257364466.

The previous prime is 257364413. The next prime is 257364469. The reversal of 257364467 is 764463752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257364467 - 2¹⁰ = 257363443 is a prime.

Together with 257364469, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (257364469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128682233 + 128682234.

It is an arithmetic number, because the mean of its divisors is an integer number (128682234).

Almost surely, 2^257364467 is an apocalyptic number.

257364467 is a deficient number, since it is larger than the sum of its proper divisors (1).

257364467 is an equidigital number, since it uses as much as digits as its factorization.

257364467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 44.

The square root of 257364467 is about 16042.5829279452. The cubic root of 257364467 is about 636.0865247246.

It can be divided in two parts, 25736 and 4467, that added together give a palindrome (30203).

The spelling of 257364467 in words is "two hundred fifty-seven million, three hundred sixty-four thousand, four hundred sixty-seven".