20050507 has 2 divisors, whose sum is σ = 20050508. Its totient is φ = 20050506.

The previous prime is 20050493. The next prime is 20050523. The reversal of 20050507 is 70505002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20050507 - 2¹¹ = 20048459 is a prime.

It is not a weakly prime, because it can be changed into another prime (20050207) 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 as a sum of consecutive naturals, namely, 10025253 + 10025254.

It is an arithmetic number, because the mean of its divisors is an integer number (10025254).

Almost surely, 2^20050507 is an apocalyptic number.

20050507 is a deficient number, since it is larger than the sum of its proper divisors (1).

20050507 is an equidigital number, since it uses as much as digits as its factorization.

20050507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 20050507 is about 4477.7792486901. The cubic root of 20050507 is about 271.6700647364.

Adding to 20050507 its reverse (70505002), we get a palindrome (90555509).

The spelling of 20050507 in words is "twenty million, fifty thousand, five hundred seven".