1503312500 has 84 divisors (see below), whose sum is σ = 3346832160. Its totient is φ = 590700000.

The previous prime is 1503312467. The next prime is 1503312529. The reversal of 1503312500 is 52133051.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 4187321 + ... + 4187679.

It is an arithmetic number, because the mean of its divisors is an integer number (39843240).

Almost surely, 2^1503312500 is an apocalyptic number.

1503312500 is a gapful number since it is divisible by the number (10) 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 1503312500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673416080).

1503312500 is an abundant number, since it is smaller than the sum of its proper divisors (1843519660).

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

1503312500 is an frugal number, since it uses more digits than its factorization.

1503312500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1503312500 is about 38772.5740698241. The cubic root of 1503312500 is about 1145.5562599118.

Adding to 1503312500 its reverse (52133051), we get a palindrome (1555445551).

The spelling of 1503312500 in words is "one billion, five hundred three million, three hundred twelve thousand, five hundred".