75125065 has 4 divisors (see below), whose sum is σ = 90150084. Its totient is φ = 60100048.

The previous prime is 75125041. The next prime is 75125081. The reversal of 75125065 is 56052157.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34433424 + 40691641 = 5868^2 + 6379^2 .

It is a cyclic number.

It is not a de Polignac number, because 75125065 - 2⁵ = 75125033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7512502 + ... + 7512511.

It is an arithmetic number, because the mean of its divisors is an integer number (22537521).

Almost surely, 2^75125065 is an apocalyptic number.

It is an amenable number.

75125065 is a deficient number, since it is larger than the sum of its proper divisors (15025019).

75125065 is a wasteful number, since it uses less digits than its factorization.

75125065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15025018.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 75125065 is about 8667.4716613324. The cubic root of 75125065 is about 421.9506111573.

The spelling of 75125065 in words is "seventy-five million, one hundred twenty-five thousand, sixty-five".