1500500000 has 84 divisors (see below), whose sum is σ = 3693819906. Its totient is φ = 600000000.

The previous prime is 1500499997. The next prime is 1500500033. The reversal of 1500500000 is 50051.

1500500000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 7 ways, for example, as 771283984 + 729216016 = 27772^2 + 27004^2 .

It is a hoax number, since the sum of its digits (11) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 498500 + ... + 501500.

Almost surely, 2^1500500000 is an apocalyptic number.

1500500000 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 1500500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1846909953).

1500500000 is an abundant number, since it is smaller than the sum of its proper divisors (2193319906).

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

1500500000 is an frugal number, since it uses more digits than its factorization.

1500500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 1500500000 is about 38736.2878964931. The cubic root of 1500500000 is about 1144.8414188951.

Adding to 1500500000 its reverse (50051), we get a palindrome (1500550051).

The spelling of 1500500000 in words is "one billion, five hundred million, five hundred thousand".