1530216500 has 24 divisors (see below), whose sum is σ = 3341993928. Its totient is φ = 612086400.

The previous prime is 1530216487. The next prime is 1530216539. The reversal of 1530216500 is 56120351.

It can be written as a sum of positive squares in 4 ways, for example, as 5626384 + 1524590116 = 2372^2 + 39046^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529717 + ... + 1530716.

It is an arithmetic number, because the mean of its divisors is an integer number (139249747).

Almost surely, 2^1530216500 is an apocalyptic number.

1530216500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530216500 is an abundant number, since it is smaller than the sum of its proper divisors (1811777428).

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

1530216500 is a wasteful number, since it uses less digits than its factorization.

1530216500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060452 (or 3060440 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1530216500 is about 39117.9817986562. The cubic root of 1530216500 is about 1152.3497011337.

Adding to 1530216500 its reverse (56120351), we get a palindrome (1586336851).

The spelling of 1530216500 in words is "one billion, five hundred thirty million, two hundred sixteen thousand, five hundred".