75500071 has 4 divisors (see below), whose sum is σ = 75560472. Its totient is φ = 75439672.

The previous prime is 75500069. The next prime is 75500083. The reversal of 75500071 is 17000557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17000557 = 7 ⋅2428651.

It is a cyclic number.

It is not a de Polignac number, because 75500071 - 2¹ = 75500069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75500011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28285 + ... + 30838.

It is an arithmetic number, because the mean of its divisors is an integer number (18890118).

Almost surely, 2^75500071 is an apocalyptic number.

75500071 is a deficient number, since it is larger than the sum of its proper divisors (60401).

75500071 is a wasteful number, since it uses less digits than its factorization.

75500071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60400.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 75500071 is about 8689.0776840813. The cubic root of 75500071 is about 422.6515376727.

The spelling of 75500071 in words is "seventy-five million, five hundred thousand, seventy-one".