502653449 has 2 divisors, whose sum is σ = 502653450. Its totient is φ = 502653448.

The previous prime is 502653409. The next prime is 502653451. The reversal of 502653449 is 944356205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461949049 + 40704400 = 21493^2 + 6380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502653449 is a prime.

Together with 502653451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (502653409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251326724 + 251326725.

It is an arithmetic number, because the mean of its divisors is an integer number (251326725).

Almost surely, 2^502653449 is an apocalyptic number.

It is an amenable number.

502653449 is a deficient number, since it is larger than the sum of its proper divisors (1).

502653449 is an equidigital number, since it uses as much as digits as its factorization.

502653449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 502653449 is about 22419.9341881282. The cubic root of 502653449 is about 795.1020788455.

The spelling of 502653449 in words is "five hundred two million, six hundred fifty-three thousand, four hundred forty-nine".