53383681 has 16 divisors (see below), whose sum is σ = 60173568. Its totient is φ = 47030400.

The previous prime is 53383619. The next prime is 53383703. The reversal of 53383681 is 18638335.

It is a cyclic number.

It is not a de Polignac number, because 53383681 - 2¹⁷ = 53252609 is a prime.

It is a super-2 number, since 2×53383681² = 5699634794219522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53383681.

It is not an unprimeable number, because it can be changed into a prime (53380681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23986 + ... + 26116.

It is an arithmetic number, because the mean of its divisors is an integer number (3760848).

Almost surely, 2^53383681 is an apocalyptic number.

It is an amenable number.

53383681 is a deficient number, since it is larger than the sum of its proper divisors (6789887).

53383681 is a wasteful number, since it uses less digits than its factorization.

53383681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232.

The product of its digits is 51840, while the sum is 37.

The square root of 53383681 is about 7306.4136893554. The cubic root of 53383681 is about 376.5328217205.

The spelling of 53383681 in words is "fifty-three million, three hundred eighty-three thousand, six hundred eighty-one".