20052115 has 4 divisors (see below), whose sum is σ = 24062544. Its totient is φ = 16041688.

The previous prime is 20052101. The next prime is 20052119. The reversal of 20052115 is 51125002.

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 20052115 - 2⁷ = 20051987 is a prime.

It is a super-3 number, since 3×20052115³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20052119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005207 + ... + 2005216.

It is an arithmetic number, because the mean of its divisors is an integer number (6015636).

Almost surely, 2^20052115 is an apocalyptic number.

20052115 is a deficient number, since it is larger than the sum of its proper divisors (4010429).

20052115 is an equidigital number, since it uses as much as digits as its factorization.

20052115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010428.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 20052115 is about 4477.9587983812. The cubic root of 20052115 is about 271.6773269599.

Adding to 20052115 its reverse (51125002), we get a palindrome (71177117).

The spelling of 20052115 in words is "twenty million, fifty-two thousand, one hundred fifteen".