500312500 has 48 divisors (see below), whose sum is σ = 1095114384. Its totient is φ = 200000000.

The previous prime is 500312479. The next prime is 500312531. The reversal of 500312500 is 5213005.

It can be written as a sum of positive squares in 8 ways, for example, as 492041124 + 8271376 = 22182^2 + 2876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311700 + ... + 313300.

It is an arithmetic number, because the mean of its divisors is an integer number (22814883).

Almost surely, 2^500312500 is an apocalyptic number.

500312500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 500312500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547557192).

500312500 is an abundant number, since it is smaller than the sum of its proper divisors (594801884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

500312500 is an frugal number, since it uses more digits than its factorization.

500312500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 500312500 is about 22367.6663959386. Note that the first 3 decimals coincide. The cubic root of 500312500 is about 793.8658458235.

Adding to 500312500 its reverse (5213005), we get a palindrome (505525505).

It can be divided in two parts, 500 and 312500, that multiplied together give a square (156250000 = 12500²).

The spelling of 500312500 in words is "five hundred million, three hundred twelve thousand, five hundred".