20052787 has 2 divisors, whose sum is σ = 20052788. Its totient is φ = 20052786.

The previous prime is 20052751. The next prime is 20052793. The reversal of 20052787 is 78725002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20052787 - 2¹⁵ = 20020019 is a prime.

It is a super-2 number, since 2×20052787² = 804228532934738, which contains 22 as substring.

It is equal to p_1273774 and since 20052787 and 1273774 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20052587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10026393 + 10026394.

It is an arithmetic number, because the mean of its divisors is an integer number (10026394).

Almost surely, 2^20052787 is an apocalyptic number.

20052787 is a deficient number, since it is larger than the sum of its proper divisors (1).

20052787 is an equidigital number, since it uses as much as digits as its factorization.

20052787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 20052787 is about 4478.0338319401. The cubic root of 20052787 is about 271.6803618039.

Adding to 20052787 its reverse (78725002), we get a palindrome (98777789).

The spelling of 20052787 in words is "twenty million, fifty-two thousand, seven hundred eighty-seven".