53303668 has 24 divisors (see below), whose sum is σ = 103491360. Its totient is φ = 23817120.

The previous prime is 53303641. The next prime is 53303681. The reversal of 53303668 is 86630335.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7671 + ... + 12862.

It is an arithmetic number, because the mean of its divisors is an integer number (4312140).

Almost surely, 2^53303668 is an apocalyptic number.

It is an amenable number.

53303668 is a deficient number, since it is larger than the sum of its proper divisors (50187692).

53303668 is a wasteful number, since it uses less digits than its factorization.

53303668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20607 (or 20605 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 53303668 is about 7300.9361043636. The cubic root of 53303668 is about 376.3446082400.

It can be divided in two parts, 5330 and 3668, that added together give a palindrome (8998).

The spelling of 53303668 in words is "fifty-three million, three hundred three thousand, six hundred sixty-eight".