75252228 has 48 divisors (see below), whose sum is σ = 188200320. Its totient is φ = 23341824.

The previous prime is 75252197. The next prime is 75252241. The reversal of 75252228 is 82225257.

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, 6528 + ... + 13896.

It is an arithmetic number, because the mean of its divisors is an integer number (3920840).

Almost surely, 2^75252228 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 75252228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94100160).

75252228 is an abundant number, since it is smaller than the sum of its proper divisors (112948092).

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

75252228 is a wasteful number, since it uses less digits than its factorization.

75252228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7436 (or 7434 counting only the distinct ones).

The product of its digits is 22400, while the sum is 33.

The square root of 75252228 is about 8674.8042052833. The cubic root of 75252228 is about 422.1885533120.

The spelling of 75252228 in words is "seventy-five million, two hundred fifty-two thousand, two hundred twenty-eight".