75525305 has 8 divisors (see below), whose sum is σ = 95961672. Its totient is φ = 56866048.

The previous prime is 75525293. The next prime is 75525313. The reversal of 75525305 is 50352557.

It can be written as a sum of positive squares in 4 ways, for example, as 16711744 + 58813561 = 4088^2 + 7669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75525305 - 2⁸ = 75525049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444182 + ... + 444351.

It is an arithmetic number, because the mean of its divisors is an integer number (11995209).

Almost surely, 2^75525305 is an apocalyptic number.

It is an amenable number.

75525305 is a deficient number, since it is larger than the sum of its proper divisors (20436367).

75525305 is a wasteful number, since it uses less digits than its factorization.

75525305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888555.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 75525305 is about 8690.5296156218. The cubic root of 75525305 is about 422.6986193103.

The spelling of 75525305 in words is "seventy-five million, five hundred twenty-five thousand, three hundred five".