509495 has 8 divisors (see below), whose sum is σ = 698784. Its totient is φ = 349344.

The previous prime is 509477. The next prime is 509513. The reversal of 509495 is 594905.

It is an interprime number because it is at equal distance from previous prime (509477) and next prime (509513).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 509495 - 2⁸ = 509239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 509495.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7244 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (87348).

2⁵⁰⁹⁴⁹⁵ is an apocalyptic number.

509495 is a deficient number, since it is larger than the sum of its proper divisors (189289).

509495 is a wasteful number, since it uses less digits than its factorization.

509495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14569.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 509495 is about 713.7891845636. The cubic root of 509495 is about 79.8693178936.

The spelling of 509495 in words is "five hundred nine thousand, four hundred ninety-five".