52689069 has 32 divisors (see below), whose sum is σ = 83220480. Its totient is φ = 32832000.

The previous prime is 52689041. The next prime is 52689079. The reversal of 52689069 is 96098625.

It is not a de Polignac number, because 52689069 - 2⁵ = 52689037 is a prime.

It is a super-2 number, since 2×52689069² = 5552275984173522, 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 (52689019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87369 + ... + 87969.

It is an arithmetic number, because the mean of its divisors is an integer number (2600640).

Almost surely, 2^52689069 is an apocalyptic number.

It is an amenable number.

52689069 is a deficient number, since it is larger than the sum of its proper divisors (30531411).

52689069 is a wasteful number, since it uses less digits than its factorization.

52689069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 52689069 is about 7258.7236481354. The cubic root of 52689069 is about 374.8925772305.

The spelling of 52689069 in words is "fifty-two million, six hundred eighty-nine thousand, sixty-nine".