495642539 has 16 divisors (see below), whose sum is σ = 594647040. Its totient is φ = 404153280.

The previous prime is 495642527. The next prime is 495642541. The reversal of 495642539 is 935246594.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 495642539 - 2⁴ = 495642523 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 495642493 and 495642502.

It is not an unprimeable number, because it can be changed into a prime (495642559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6554 + ... + 32159.

It is an arithmetic number, because the mean of its divisors is an integer number (37165440).

Almost surely, 2^495642539 is an apocalyptic number.

495642539 is a deficient number, since it is larger than the sum of its proper divisors (99004501).

495642539 is a wasteful number, since it uses less digits than its factorization.

495642539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38810.

The product of its digits is 1166400, while the sum is 47.

The square root of 495642539 is about 22263.0307685185. The cubic root of 495642539 is about 791.3881160351.

The spelling of 495642539 in words is "four hundred ninety-five million, six hundred forty-two thousand, five hundred thirty-nine".