495951 has 4 divisors (see below), whose sum is σ = 661272. Its totient is φ = 330632.

The previous prime is 495947. The next prime is 495953. The reversal of 495951 is 159594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 495951 - 2² = 495947 is a prime.

It is a D-number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82656 + ... + 82661.

It is an arithmetic number, because the mean of its divisors is an integer number (165318).

2⁴⁹⁵⁹⁵¹ is an apocalyptic number.

495951 is a deficient number, since it is larger than the sum of its proper divisors (165321).

495951 is a wasteful number, since it uses less digits than its factorization.

495951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165320.

The product of its digits is 8100, while the sum is 33.

The square root of 495951 is about 704.2378859448. The cubic root of 495951 is about 79.1552254318.

The spelling of 495951 in words is "four hundred ninety-five thousand, nine hundred fifty-one".