494588257 has 2 divisors, whose sum is σ = 494588258. Its totient is φ = 494588256.

The previous prime is 494588249. The next prime is 494588267. The reversal of 494588257 is 752885494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468332881 + 26255376 = 21641^2 + 5124^2 .

It is a cyclic number.

It is not a de Polignac number, because 494588257 - 2³ = 494588249 is a prime.

It is not a weakly prime, because it can be changed into another prime (494588267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247294128 + 247294129.

It is an arithmetic number, because the mean of its divisors is an integer number (247294129).

Almost surely, 2^494588257 is an apocalyptic number.

It is an amenable number.

494588257 is a deficient number, since it is larger than the sum of its proper divisors (1).

494588257 is an equidigital number, since it uses as much as digits as its factorization.

494588257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 52.

The square root of 494588257 is about 22239.3403004675. The cubic root of 494588257 is about 790.8265967547.

The spelling of 494588257 in words is "four hundred ninety-four million, five hundred eighty-eight thousand, two hundred fifty-seven".