75028005 has 32 divisors (see below), whose sum is σ = 143646720. Its totient is φ = 36936000.

The previous prime is 75028003. The next prime is 75028033. The reversal of 75028005 is 50082057.

It is a happy number.

It is not a de Polignac number, because 75028005 - 2¹ = 75028003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 75028005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75028003) 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 31 ways as a sum of consecutive naturals, for example, 19621 + ... + 23130.

It is an arithmetic number, because the mean of its divisors is an integer number (4488960).

Almost surely, 2^75028005 is an apocalyptic number.

It is an amenable number.

75028005 is a deficient number, since it is larger than the sum of its proper divisors (68618715).

75028005 is a wasteful number, since it uses less digits than its factorization.

75028005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42778 (or 42772 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 75028005 is about 8661.8707563667. The cubic root of 75028005 is about 421.7688157452.

The spelling of 75028005 in words is "seventy-five million, twenty-eight thousand, five".