75000005 has 16 divisors (see below), whose sum is σ = 98371584. Its totient is φ = 54647040.

The previous prime is 74999959. The next prime is 75000007. The reversal of 75000005 is 50000057.

It is not a de Polignac number, because 75000005 - 2²⁰ = 73951429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75000007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11597 + ... + 16866.

It is an arithmetic number, because the mean of its divisors is an integer number (6148224).

Almost surely, 2^75000005 is an apocalyptic number.

It is an amenable number.

75000005 is a deficient number, since it is larger than the sum of its proper divisors (23371579).

75000005 is a wasteful number, since it uses less digits than its factorization.

75000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28516.

The product of its (nonzero) digits is 175, while the sum is 17.

The square root of 75000005 is about 8660.2543265195. The cubic root of 75000005 is about 421.7163420223.

The spelling of 75000005 in words is "seventy-five million, five", and thus it is an aban number and an uban number.