502685254009 has 27 divisors (see below), whose sum is σ = 522522286221. Its totient is φ = 483596766240.

The previous prime is 502685253899. The next prime is 502685254021. The reversal of 502685254009 is 900452586205.

It is a happy number.

The square root of 502685254009 is 709003.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 752679225 + 501932574784 = 27435^2 + 708472^2 .

It is not a de Polignac number, because 502685254009 - 2¹³ = 502685245817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 502685254009.

It is not an unprimeable number, because it can be changed into a prime (502685254069) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2551701699 + ... + 2551701895.

Almost surely, 2^502685254009 is an apocalyptic number.

502685254009 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

502685254009 is the 709003-rd square number.

502685254009 is the 354502-nd centered octagonal number.

It is an amenable number.

502685254009 is a deficient number, since it is larger than the sum of its proper divisors (19837032212).

502685254009 is an frugal number, since it uses more digits than its factorization.

502685254009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 502685254009 in words is "five hundred two billion, six hundred eighty-five million, two hundred fifty-four thousand, nine".