495902021 has 8 divisors (see below), whose sum is σ = 509306400. Its totient is φ = 482664400.

The previous prime is 495901999. The next prime is 495902047. The reversal of 495902021 is 120209594.

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 495902021 - 2¹⁰ = 495900997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495902081) 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, 35651 + ... + 47568.

It is an arithmetic number, because the mean of its divisors is an integer number (63663300).

Almost surely, 2^495902021 is an apocalyptic number.

It is an amenable number.

495902021 is a deficient number, since it is larger than the sum of its proper divisors (13404379).

495902021 is a wasteful number, since it uses less digits than its factorization.

495902021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83379.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 495902021 is about 22268.8576491925. The cubic root of 495902021 is about 791.5261961566.

The spelling of 495902021 in words is "four hundred ninety-five million, nine hundred two thousand, twenty-one".