75330225 has 36 divisors (see below), whose sum is σ = 137492316. Its totient is φ = 39411840.

The previous prime is 75330191. The next prime is 75330251. The reversal of 75330225 is 52203357.

It can be written as a sum of positive squares in 6 ways, for example, as 5184 + 75325041 = 72^2 + 8679^2 .

It is not a de Polignac number, because 75330225 - 2⁷ = 75330097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8767 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (3819231).

Almost surely, 2^75330225 is an apocalyptic number.

75330225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75330225 is a deficient number, since it is larger than the sum of its proper divisors (62162091).

75330225 is a wasteful number, since it uses less digits than its factorization.

75330225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386 (or 6378 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 75330225 is about 8679.2986467802. The cubic root of 75330225 is about 422.3343654745.

The spelling of 75330225 in words is "seventy-five million, three hundred thirty thousand, two hundred twenty-five".