15963552 has 72 divisors (see below), whose sum is σ = 49533120. Its totient is φ = 4836480.

The previous prime is 15963551. The next prime is 15963557. The reversal of 15963552 is 25536951.

15963552 is a `hidden beast` number, since 15 + 9 + 635 + 5 + 2 = 666.

15963552 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15963551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649 + ... + 5687.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^15963552 is an apocalyptic number.

15963552 is a gapful number since it is divisible by the number (12) 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 15963552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24766560).

15963552 is an abundant number, since it is smaller than the sum of its proper divisors (33569568).

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

15963552 is a wasteful number, since it uses less digits than its factorization.

15963552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066 (or 5055 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 15963552 is about 3995.4414023985. The cubic root of 15963552 is about 251.7927244939.

The spelling of 15963552 in words is "fifteen million, nine hundred sixty-three thousand, five hundred fifty-two".