75750005 has 4 divisors (see below), whose sum is σ = 90900012. Its totient is φ = 60600000.

The previous prime is 75749987. The next prime is 75750023. The reversal of 75750005 is 50005757.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50005757 = 83 ⋅602479.

It is an interprime number because it is at equal distance from previous prime (75749987) and next prime (75750023).

It can be written as a sum of positive squares in 2 ways, for example, as 14190289 + 61559716 = 3767^2 + 7846^2 .

It is not a de Polignac number, because 75750005 - 2⁸ = 75749749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75750005.

It is a congruent 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, 7574996 + ... + 7575005.

It is an arithmetic number, because the mean of its divisors is an integer number (22725003).

Almost surely, 2^75750005 is an apocalyptic number.

It is an amenable number.

75750005 is a deficient number, since it is larger than the sum of its proper divisors (15150007).

75750005 is a wasteful number, since it uses less digits than its factorization.

75750005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15150006.

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 75750005 is about 8703.4478800071. The cubic root of 75750005 is about 423.1174031918.

The spelling of 75750005 in words is "seventy-five million, seven hundred fifty thousand, five".