1500625000 has 160 divisors (see below), whose sum is σ = 4103016840. Its totient is φ = 514500000.

The previous prime is 1500624989. The next prime is 1500625001. The reversal of 1500625000 is 5260051.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 4 ways, for example, as 905167396 + 595457604 = 30086^2 + 24402^2 .

It is not an unprimeable number, because it can be changed into a prime (1500625001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 214374997 + ... + 214375003.

Almost surely, 2^1500625000 is an apocalyptic number.

1500625000 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 1500625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2051508420).

1500625000 is an abundant number, since it is smaller than the sum of its proper divisors (2602391840).

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

1500625000 is an frugal number, since it uses more digits than its factorization.

1500625000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1500625000 is about 38737.9013370626. The cubic root of 1500625000 is about 1144.8732085660.

Adding to 1500625000 its reverse (5260051), we get a palindrome (1505885051).

The spelling of 1500625000 in words is "one billion, five hundred million, six hundred twenty-five thousand".