6543001530 has 128 divisors (see below), whose sum is σ = 18835891200. Its totient is φ = 1606666752.

The previous prime is 6543001501. The next prime is 6543001559. The reversal of 6543001530 is 351003456.

6543001530 is a `hidden beast` number, since 654 + 3 + 0 + 0 + 1 + 5 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6543001501) and next prime (6543001559).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 6543001494 and 6543001503.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1602031 + ... + 1606109.

It is an arithmetic number, because the mean of its divisors is an integer number (147155400).

Almost surely, 2^6543001530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6543001530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9417945600).

6543001530 is an abundant number, since it is smaller than the sum of its proper divisors (12292889670).

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

6543001530 is a wasteful number, since it uses less digits than its factorization.

6543001530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 6543001530 is about 80888.8220337025. The cubic root of 6543001530 is about 1870.3620153787.

Adding to 6543001530 its reverse (351003456), we get a palindrome (6894004986).

The spelling of 6543001530 in words is "six billion, five hundred forty-three million, one thousand, five hundred thirty".