502240313 has 2 divisors, whose sum is σ = 502240314. Its totient is φ = 502240312.

The previous prime is 502240307. The next prime is 502240337. The reversal of 502240313 is 313042205.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449779264 + 52461049 = 21208^2 + 7243^2 .

It is a cyclic number.

It is not a de Polignac number, because 502240313 - 2²⁰ = 501191737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (502240373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251120156 + 251120157.

It is an arithmetic number, because the mean of its divisors is an integer number (251120157).

Almost surely, 2^502240313 is an apocalyptic number.

It is an amenable number.

502240313 is a deficient number, since it is larger than the sum of its proper divisors (1).

502240313 is an equidigital number, since it uses as much as digits as its factorization.

502240313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 502240313 is about 22410.7187077969. The cubic root of 502240313 is about 794.8841849670.

Adding to 502240313 its reverse (313042205), we get a palindrome (815282518).

The spelling of 502240313 in words is "five hundred two million, two hundred forty thousand, three hundred thirteen".