492557531 has 2 divisors, whose sum is σ = 492557532. Its totient is φ = 492557530.

The previous prime is 492557521. The next prime is 492557537. The reversal of 492557531 is 135755294.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492557531 is a prime.

It is a super-2 number, since 2×492557531² = 485225842689631922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (492557537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246278765 + 246278766.

It is an arithmetic number, because the mean of its divisors is an integer number (246278766).

Almost surely, 2^492557531 is an apocalyptic number.

492557531 is a deficient number, since it is larger than the sum of its proper divisors (1).

492557531 is an equidigital number, since it uses as much as digits as its factorization.

492557531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 41.

The square root of 492557531 is about 22193.6371737487. The cubic root of 492557531 is about 789.7427624801.

The spelling of 492557531 in words is "four hundred ninety-two million, five hundred fifty-seven thousand, five hundred thirty-one".