201425503 has 16 divisors (see below), whose sum is σ = 225348480. Its totient is φ = 179124736.

The previous prime is 201425491. The next prime is 201425527. The reversal of 201425503 is 305524102.

It is a cyclic number.

It is not a de Polignac number, because 201425503 - 2⁹ = 201424991 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 (201425563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18825 + ... + 27517.

It is an arithmetic number, because the mean of its divisors is an integer number (14084280).

Almost surely, 2^201425503 is an apocalyptic number.

201425503 is a deficient number, since it is larger than the sum of its proper divisors (23922977).

201425503 is a wasteful number, since it uses less digits than its factorization.

201425503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8786.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 201425503 is about 14192.4452790913. The cubic root of 201425503 is about 586.1896583511.

Adding to 201425503 its reverse (305524102), we get a palindrome (506949605).

The spelling of 201425503 in words is "two hundred one million, four hundred twenty-five thousand, five hundred three".