20116529 has 4 divisors (see below), whose sum is σ = 20212080. Its totient is φ = 20020980.

The previous prime is 20116487. The next prime is 20116531. The reversal of 20116529 is 92561102.

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 20116529 - 2²⁴ = 3339313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20116498 and 20116507.

It is not an unprimeable number, because it can be changed into a prime (20116429) 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, 47459 + ... + 47880.

It is an arithmetic number, because the mean of its divisors is an integer number (5053020).

Almost surely, 2^20116529 is an apocalyptic number.

It is an amenable number.

20116529 is a deficient number, since it is larger than the sum of its proper divisors (95551).

20116529 is an equidigital number, since it uses as much as digits as its factorization.

20116529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95550.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 20116529 is about 4485.1453711112. The cubic root of 20116529 is about 271.9679217144.

The spelling of 20116529 in words is "twenty million, one hundred sixteen thousand, five hundred twenty-nine".