503225389 has 2 divisors, whose sum is σ = 503225390. Its totient is φ = 503225388.

The previous prime is 503225323. The next prime is 503225399. The reversal of 503225389 is 983522305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402323364 + 100902025 = 20058^2 + 10045^2 .

It is a cyclic number.

It is not a de Polignac number, because 503225389 - 2²³ = 494836781 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503225309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251612694 + 251612695.

It is an arithmetic number, because the mean of its divisors is an integer number (251612695).

Almost surely, 2^503225389 is an apocalyptic number.

It is an amenable number.

503225389 is a deficient number, since it is larger than the sum of its proper divisors (1).

503225389 is an equidigital number, since it uses as much as digits as its factorization.

503225389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 503225389 is about 22432.6857286416. The cubic root of 503225389 is about 795.4035312774.

The spelling of 503225389 in words is "five hundred three million, two hundred twenty-five thousand, three hundred eighty-nine".