495235621 has 4 divisors (see below), whose sum is σ = 498559500. Its totient is φ = 491911744.

The previous prime is 495235613. The next prime is 495235673. The reversal of 495235621 is 126532594.

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

It can be written as a sum of positive squares in 2 ways, for example, as 327248100 + 167987521 = 18090^2 + 12961^2 .

It is a cyclic number.

It is not a de Polignac number, because 495235621 - 2³ = 495235613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495235681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661716 + ... + 1662013.

It is an arithmetic number, because the mean of its divisors is an integer number (124639875).

Almost surely, 2^495235621 is an apocalyptic number.

It is an amenable number.

495235621 is a deficient number, since it is larger than the sum of its proper divisors (3323879).

495235621 is a wasteful number, since it uses less digits than its factorization.

495235621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323878.

The product of its digits is 64800, while the sum is 37.

The square root of 495235621 is about 22253.8900195000. The cubic root of 495235621 is about 791.1714825999.

The spelling of 495235621 in words is "four hundred ninety-five million, two hundred thirty-five thousand, six hundred twenty-one".