53389689 has 4 divisors (see below), whose sum is σ = 71186256. Its totient is φ = 35593124.

The previous prime is 53389663. The next prime is 53389717. The reversal of 53389689 is 98698335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53389689 - 2⁸ = 53389433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53389619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8898279 + ... + 8898284.

It is an arithmetic number, because the mean of its divisors is an integer number (17796564).

Almost surely, 2^53389689 is an apocalyptic number.

It is an amenable number.

53389689 is a deficient number, since it is larger than the sum of its proper divisors (17796567).

53389689 is a wasteful number, since it uses less digits than its factorization.

53389689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17796566.

The product of its digits is 1399680, while the sum is 51.

The square root of 53389689 is about 7306.8248234100. The cubic root of 53389689 is about 376.5469466634.

The spelling of 53389689 in words is "fifty-three million, three hundred eighty-nine thousand, six hundred eighty-nine".