495999951 has 4 divisors (see below), whose sum is σ = 661333272. Its totient is φ = 330666632.

The previous prime is 495999943. The next prime is 495999983. The reversal of 495999951 is 159999594.

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 495999951 - 2³ = 495999943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495999901) 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 in 3 ways as a sum of consecutive naturals, for example, 82666656 + ... + 82666661.

It is an arithmetic number, because the mean of its divisors is an integer number (165333318).

Almost surely, 2^495999951 is an apocalyptic number.

495999951 is a deficient number, since it is larger than the sum of its proper divisors (165333321).

495999951 is a wasteful number, since it uses less digits than its factorization.

495999951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165333320.

The product of its digits is 5904900, while the sum is 60.

The square root of 495999951 is about 22271.0563512376. The cubic root of 495999951 is about 791.5782958693.

The spelling of 495999951 in words is "four hundred ninety-five million, nine hundred ninety-nine thousand, nine hundred fifty-one".