200540503 has 2 divisors, whose sum is σ = 200540504. Its totient is φ = 200540502.

The previous prime is 200540491. The next prime is 200540531. The reversal of 200540503 is 305045002.

It is a happy number.

200540503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200540503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200540203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100270251 + 100270252.

It is an arithmetic number, because the mean of its divisors is an integer number (100270252).

Almost surely, 2^200540503 is an apocalyptic number.

200540503 is a deficient number, since it is larger than the sum of its proper divisors (1).

200540503 is an equidigital number, since it uses as much as digits as its factorization.

200540503 is an evil number, because the sum of its binary digits is even.

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

The square root of 200540503 is about 14161.2323969350. The cubic root of 200540503 is about 585.3298872332.

Adding to 200540503 its reverse (305045002), we get a palindrome (505585505).

The spelling of 200540503 in words is "two hundred million, five hundred forty thousand, five hundred three".