495123511 has 2 divisors, whose sum is σ = 495123512. Its totient is φ = 495123510.

The previous prime is 495123491. The next prime is 495123569. The reversal of 495123511 is 115321594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 495123511 - 2⁷ = 495123383 is a prime.

It is a super-2 number, since 2×495123511² = 490294582289934242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495123611) 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, 247561755 + 247561756.

It is an arithmetic number, because the mean of its divisors is an integer number (247561756).

Almost surely, 2^495123511 is an apocalyptic number.

495123511 is a deficient number, since it is larger than the sum of its proper divisors (1).

495123511 is an equidigital number, since it uses as much as digits as its factorization.

495123511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 495123511 is about 22251.3709914693. The cubic root of 495123511 is about 791.1117770611. Note that the first 3 decimals are identical.

The spelling of 495123511 in words is "four hundred ninety-five million, one hundred twenty-three thousand, five hundred eleven".