52081689 has 16 divisors (see below), whose sum is σ = 76161024. Its totient is φ = 31395600.

The previous prime is 52081663. The next prime is 52081723. The reversal of 52081689 is 98618025.

It is not a de Polignac number, because 52081689 - 2⁵ = 52081657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52081639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2172 + ... + 10434.

It is an arithmetic number, because the mean of its divisors is an integer number (4760064).

Almost surely, 2^52081689 is an apocalyptic number.

It is an amenable number.

52081689 is a deficient number, since it is larger than the sum of its proper divisors (24079335).

52081689 is a wasteful number, since it uses less digits than its factorization.

52081689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8468.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 52081689 is about 7216.7644412160. The cubic root of 52081689 is about 373.4464654127.

The spelling of 52081689 in words is "fifty-two million, eighty-one thousand, six hundred eighty-nine".