53988669 has 24 divisors (see below), whose sum is σ = 89968320. Its totient is φ = 30558528.

The previous prime is 53988631. The next prime is 53988673. The reversal of 53988669 is 96688935.

It is not a de Polignac number, because 53988669 - 2⁹ = 53988157 is a prime.

It is a super-2 number, since 2×53988669² = 5829552760783122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53987669) 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 23 ways as a sum of consecutive naturals, for example, 2737 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (3748680).

Almost surely, 2^53988669 is an apocalyptic number.

It is an amenable number.

53988669 is a deficient number, since it is larger than the sum of its proper divisors (35979651).

53988669 is a wasteful number, since it uses less digits than its factorization.

53988669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8129 (or 8126 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 53988669 is about 7347.6982110046. The cubic root of 53988669 is about 377.9498757757.

The spelling of 53988669 in words is "fifty-three million, nine hundred eighty-eight thousand, six hundred sixty-nine".