1563432530 has 64 divisors (see below), whose sum is σ = 3128720256. Its totient is φ = 562408000.

The previous prime is 1563432527. The next prime is 1563432539. The reversal of 1563432530 is 352343651.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1563432539) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1343729 + ... + 1344891.

It is an arithmetic number, because the mean of its divisors is an integer number (48886254).

Almost surely, 2^1563432530 is an apocalyptic number.

1563432530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1563432530 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1563432530 is a wasteful number, since it uses less digits than its factorization.

1563432530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 1563432530 is about 39540.2646678041. The cubic root of 1563432530 is about 1160.6280116046.

The spelling of 1563432530 in words is "one billion, five hundred sixty-three million, four hundred thirty-two thousand, five hundred thirty".