53008689 has 8 divisors (see below), whose sum is σ = 74398240. Its totient is φ = 33479136.

The previous prime is 53008649. The next prime is 53008693. The reversal of 53008689 is 98680035.

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

It is not a de Polignac number, because 53008689 - 2⁷ = 53008561 is a prime.

It is a super-2 number, since 2×53008689² = 5619842218997442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53008619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464932 + ... + 465045.

It is an arithmetic number, because the mean of its divisors is an integer number (9299780).

Almost surely, 2^53008689 is an apocalyptic number.

It is an amenable number.

53008689 is a deficient number, since it is larger than the sum of its proper divisors (21389551).

53008689 is a wasteful number, since it uses less digits than its factorization.

53008689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929999.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 53008689 is about 7280.7066277938. The cubic root of 53008689 is about 375.6491015752.

The spelling of 53008689 in words is "fifty-three million, eight thousand, six hundred eighty-nine".