495221311 has 8 divisors (see below), whose sum is σ = 550519424. Its totient is φ = 442380960.

The previous prime is 495221297. The next prime is 495221333. The reversal of 495221311 is 113122594.

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 495221311 - 2⁷ = 495221183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 495221311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495221341) 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 7 ways as a sum of consecutive naturals, for example, 614016 + ... + 614821.

It is an arithmetic number, because the mean of its divisors is an integer number (68814928).

Almost surely, 2^495221311 is an apocalyptic number.

495221311 is a deficient number, since it is larger than the sum of its proper divisors (55298113).

495221311 is a wasteful number, since it uses less digits than its factorization.

495221311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228881.

The product of its digits is 2160, while the sum is 28.

The square root of 495221311 is about 22253.5685003552. The cubic root of 495221311 is about 791.1638621378.

The spelling of 495221311 in words is "four hundred ninety-five million, two hundred twenty-one thousand, three hundred eleven".