20052715 has 4 divisors (see below), whose sum is σ = 24063264. Its totient is φ = 16042168.

The previous prime is 20052701. The next prime is 20052719. The reversal of 20052715 is 51725002.

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 20052715 - 2⁷ = 20052587 is a prime.

It is a super-2 number, since 2×20052715² = 804222757742450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) 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 (20052719) 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, 2005267 + ... + 2005276.

It is an arithmetic number, because the mean of its divisors is an integer number (6015816).

Almost surely, 2^20052715 is an apocalyptic number.

20052715 is a deficient number, since it is larger than the sum of its proper divisors (4010549).

20052715 is an equidigital number, since it uses as much as digits as its factorization.

20052715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010548.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 20052715 is about 4478.0257926903. The cubic root of 20052715 is about 271.6800366453.

Adding to 20052715 its reverse (51725002), we get a palindrome (71777717).

The spelling of 20052715 in words is "twenty million, fifty-two thousand, seven hundred fifteen".