20052287 has 4 divisors (see below), whose sum is σ = 20063016. Its totient is φ = 20041560.

The previous prime is 20052283. The next prime is 20052289. The reversal of 20052287 is 78225002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20052287 - 2² = 20052283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052281) 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, 1748 + ... + 6569.

It is an arithmetic number, because the mean of its divisors is an integer number (5015754).

Almost surely, 2^20052287 is an apocalyptic number.

20052287 is a deficient number, since it is larger than the sum of its proper divisors (10729).

20052287 is an equidigital number, since it uses as much as digits as its factorization.

20052287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10728.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 20052287 is about 4477.9780035190. The cubic root of 20052287 is about 271.6781037419.

Adding to 20052287 its reverse (78225002), we get a palindrome (98277289).

The spelling of 20052287 in words is "twenty million, fifty-two thousand, two hundred eighty-seven".