502053509 has 4 divisors (see below), whose sum is σ = 513729216. Its totient is φ = 490377804.

The previous prime is 502053443. The next prime is 502053521. The reversal of 502053509 is 905350205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 905350205 = 5 ⋅181070041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502053509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502253509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5837789 + ... + 5837874.

It is an arithmetic number, because the mean of its divisors is an integer number (128432304).

Almost surely, 2^502053509 is an apocalyptic number.

It is an amenable number.

502053509 is a deficient number, since it is larger than the sum of its proper divisors (11675707).

502053509 is a wasteful number, since it uses less digits than its factorization.

502053509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11675706.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 502053509 is about 22406.5505823632. The cubic root of 502053509 is about 794.7856226156.

The spelling of 502053509 in words is "five hundred two million, fifty-three thousand, five hundred nine".