7500005 has 8 divisors (see below), whose sum is σ = 9019512. Its totient is φ = 5987008.

The previous prime is 7499981. The next prime is 7500013. The reversal of 7500005 is 5000057.

It can be written as a sum of positive squares in 4 ways, for example, as 8836 + 7491169 = 94^2 + 2737^2 .

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 7500005 - 2¹² = 7495909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439 + ... + 4131.

It is an arithmetic number, because the mean of its divisors is an integer number (1127439).

Almost surely, 2^7500005 is an apocalyptic number.

It is an amenable number.

7500005 is a deficient number, since it is larger than the sum of its proper divisors (1519507).

7500005 is a wasteful number, since it uses less digits than its factorization.

7500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255.

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

The square root of 7500005 is about 2738.6137003966. The cubic root of 7500005 is about 195.7434255570.

The spelling of 7500005 in words is "seven million, five hundred thousand, five".