530644903 has 2 divisors, whose sum is σ = 530644904. Its totient is φ = 530644902.

The previous prime is 530644883. The next prime is 530644909. The reversal of 530644903 is 309446035.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 530644903 - 2¹⁷ = 530513831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530644909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265322451 + 265322452.

It is an arithmetic number, because the mean of its divisors is an integer number (265322452).

Almost surely, 2^530644903 is an apocalyptic number.

530644903 is a deficient number, since it is larger than the sum of its proper divisors (1).

530644903 is an equidigital number, since it uses as much as digits as its factorization.

530644903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 530644903 is about 23035.7310064170. The cubic root of 530644903 is about 809.5953386942.

The spelling of 530644903 in words is "five hundred thirty million, six hundred forty-four thousand, nine hundred three".