1563443652 has 48 divisors (see below), whose sum is σ = 3933720000. Its totient is φ = 481674240.

The previous prime is 1563443647. The next prime is 1563443669. The reversal of 1563443652 is 2563443651.

It is a self number, because there is not a number n which added to its sum of digits gives 1563443652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74277 + ... + 92972.

It is an arithmetic number, because the mean of its divisors is an integer number (81952500).

Almost surely, 2^1563443652 is an apocalyptic number.

1563443652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1563443652 is an abundant number, since it is smaller than the sum of its proper divisors (2370276348).

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

1563443652 is a wasteful number, since it uses less digits than its factorization.

1563443652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167316 (or 167314 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The square root of 1563443652 is about 39540.4053090001. The cubic root of 1563443652 is about 1160.6307637698.

Subtracting 1563443652 from its reverse (2563443651), we obtain a palindrome (999999999).

The spelling of 1563443652 in words is "one billion, five hundred sixty-three million, four hundred forty-three thousand, six hundred fifty-two".