663395253 has 8 divisors (see below), whose sum is σ = 884728416. Its totient is φ = 442162800.

The previous prime is 663395209. The next prime is 663395261. The reversal of 663395253 is 352593366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 663395253 - 2⁶ = 663395189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663395353) 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, 8163 + ... + 37328.

It is an arithmetic number, because the mean of its divisors is an integer number (110591052).

Almost surely, 2^663395253 is an apocalyptic number.

It is an amenable number.

663395253 is a deficient number, since it is larger than the sum of its proper divisors (221333163).

663395253 is a wasteful number, since it uses less digits than its factorization.

663395253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50355.

The product of its digits is 437400, while the sum is 42.

The square root of 663395253 is about 25756.4604128751. The cubic root of 663395253 is about 872.1491995111.

The spelling of 663395253 in words is "six hundred sixty-three million, three hundred ninety-five thousand, two hundred fifty-three".