75663450 has 96 divisors (see below), whose sum is σ = 213736320. Its totient is φ = 19670400.

The previous prime is 75663449. The next prime is 75663457. The reversal of 75663450 is 5436657.

It is not an unprimeable number, because it can be changed into a prime (75663457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54667 + ... + 56033.

It is an arithmetic number, because the mean of its divisors is an integer number (2226420).

Almost surely, 2^75663450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75663450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106868160).

75663450 is an abundant number, since it is smaller than the sum of its proper divisors (138072870).

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

75663450 is a wasteful number, since it uses less digits than its factorization.

75663450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 75663450 is about 8698.4740040998. The cubic root of 75663450 is about 422.9561847882.

The spelling of 75663450 in words is "seventy-five million, six hundred sixty-three thousand, four hundred fifty".