75028073 has 6 divisors (see below), whose sum is σ = 76904382. Its totient is φ = 73196480.

The previous prime is 75028069. The next prime is 75028087. The reversal of 75028073 is 37082057.

It can be written as a sum of positive squares in 3 ways, for example, as 153664 + 74874409 = 392^2 + 8653^2 .

It is not a de Polignac number, because 75028073 - 2² = 75028069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75028003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20636 + ... + 23997.

It is an arithmetic number, because the mean of its divisors is an integer number (12817397).

Almost surely, 2^75028073 is an apocalyptic number.

It is an amenable number.

75028073 is a deficient number, since it is larger than the sum of its proper divisors (1876309).

75028073 is an equidigital number, since it uses as much as digits as its factorization.

75028073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44715 (or 44674 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 75028073 is about 8661.8746816148. The cubic root of 75028073 is about 421.7689431655.

The spelling of 75028073 in words is "seventy-five million, twenty-eight thousand, seventy-three".