20252503 has 2 divisors, whose sum is σ = 20252504. Its totient is φ = 20252502.

The previous prime is 20252501. The next prime is 20252509. The reversal of 20252503 is 30525202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20252503 - 2¹ = 20252501 is a prime.

Together with 20252501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20252501) 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, 10126251 + 10126252.

It is an arithmetic number, because the mean of its divisors is an integer number (10126252).

Almost surely, 2^20252503 is an apocalyptic number.

20252503 is a deficient number, since it is larger than the sum of its proper divisors (1).

20252503 is an equidigital number, since it uses as much as digits as its factorization.

20252503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20252503 is about 4500.2781025177. The cubic root of 20252503 is about 272.5793187161.

Adding to 20252503 its reverse (30525202), we get a palindrome (50777705).

The spelling of 20252503 in words is "twenty million, two hundred fifty-two thousand, five hundred three".