492557497 has 2 divisors, whose sum is σ = 492557498. Its totient is φ = 492557496.

The previous prime is 492557479. The next prime is 492557521. The reversal of 492557497 is 794755294.

Together with previous prime (492557479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316092841 + 176464656 = 17779^2 + 13284^2 .

It is a cyclic number.

It is not a de Polignac number, because 492557497 - 2⁷ = 492557369 is a prime.

It is a super-2 number, since 2×492557497² = 485225775701810018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (492557797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246278748 + 246278749.

It is an arithmetic number, because the mean of its divisors is an integer number (246278749).

Almost surely, 2^492557497 is an apocalyptic number.

It is an amenable number.

492557497 is a deficient number, since it is larger than the sum of its proper divisors (1).

492557497 is an equidigital number, since it uses as much as digits as its factorization.

492557497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The square root of 492557497 is about 22193.6364077634. The cubic root of 492557497 is about 789.7427443087.

The spelling of 492557497 in words is "four hundred ninety-two million, five hundred fifty-seven thousand, four hundred ninety-seven".