503564749 has 2 divisors, whose sum is σ = 503564750. Its totient is φ = 503564748.

The previous prime is 503564741. The next prime is 503564773. The reversal of 503564749 is 947465305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400400100 + 103164649 = 20010^2 + 10157^2 .

It is a cyclic number.

It is not a de Polignac number, because 503564749 - 2³ = 503564741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503564741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251782374 + 251782375.

It is an arithmetic number, because the mean of its divisors is an integer number (251782375).

Almost surely, 2^503564749 is an apocalyptic number.

It is an amenable number.

503564749 is a deficient number, since it is larger than the sum of its proper divisors (1).

503564749 is an equidigital number, since it uses as much as digits as its factorization.

503564749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 503564749 is about 22440.2484166285. The cubic root of 503564749 is about 795.5822898045.

The spelling of 503564749 in words is "five hundred three million, five hundred sixty-four thousand, seven hundred forty-nine".