503350649 has 2 divisors, whose sum is σ = 503350650. Its totient is φ = 503350648.

The previous prime is 503350643. The next prime is 503350663. The reversal of 503350649 is 946053305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503194624 + 156025 = 22432^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 503350649 - 2¹⁶ = 503285113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (503350643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251675324 + 251675325.

It is an arithmetic number, because the mean of its divisors is an integer number (251675325).

Almost surely, 2^503350649 is an apocalyptic number.

It is an amenable number.

503350649 is a deficient number, since it is larger than the sum of its proper divisors (1).

503350649 is an equidigital number, since it uses as much as digits as its factorization.

503350649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 503350649 is about 22435.4774631609. The cubic root of 503350649 is about 795.4695215759.

The spelling of 503350649 in words is "five hundred three million, three hundred fifty thousand, six hundred forty-nine".