75663552 has 112 divisors (see below), whose sum is σ = 210677760. Its totient is φ = 23933952.

The previous prime is 75663521. The next prime is 75663571. The reversal of 75663552 is 25536657.

It is a self number, because there is not a number n which added to its sum of digits gives 75663552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595713 + ... + 595839.

Almost surely, 2^75663552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75663552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105338880).

75663552 is an abundant number, since it is smaller than the sum of its proper divisors (135014208).

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

75663552 is a wasteful number, since it uses less digits than its factorization.

75663552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 268 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The square root of 75663552 is about 8698.4798671952. The cubic root of 75663552 is about 422.9563748470.

The spelling of 75663552 in words is "seventy-five million, six hundred sixty-three thousand, five hundred fifty-two".