75028538 has 8 divisors (see below), whose sum is σ = 121199988. Its totient is φ = 34628544.

The previous prime is 75028537. The next prime is 75028559. The reversal of 75028538 is 83582057.

It can be written as a sum of positive squares in 2 ways, for example, as 74528689 + 499849 = 8633^2 + 707^2 .

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

It is not an unprimeable number, because it can be changed into a prime (75028537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1442831 + ... + 1442882.

Almost surely, 2^75028538 is an apocalyptic number.

75028538 is a deficient number, since it is larger than the sum of its proper divisors (46171450).

75028538 is a wasteful number, since it uses less digits than its factorization.

75028538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885728.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 75028538 is about 8661.9015233377. The cubic root of 75028538 is about 421.7698144934.

The spelling of 75028538 in words is "seventy-five million, twenty-eight thousand, five hundred thirty-eight".