52089691 has 4 divisors (see below), whose sum is σ = 52107192. Its totient is φ = 52072192.

The previous prime is 52089637. The next prime is 52089707. The reversal of 52089691 is 19698025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52089691 - 2⁷ = 52089563 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52089601) 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, 3046 + ... + 10651.

It is an arithmetic number, because the mean of its divisors is an integer number (13026798).

Almost surely, 2^52089691 is an apocalyptic number.

52089691 is a deficient number, since it is larger than the sum of its proper divisors (17501).

52089691 is a wasteful number, since it uses less digits than its factorization.

52089691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17500.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 52089691 is about 7217.3188234967. The cubic root of 52089691 is about 373.4655902762.

The spelling of 52089691 in words is "fifty-two million, eighty-nine thousand, six hundred ninety-one".