75790565 has 4 divisors (see below), whose sum is σ = 90948684. Its totient is φ = 60632448.

The previous prime is 75790549. The next prime is 75790597. The reversal of 75790565 is 56509757.

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 9628609 + 66161956 = 3103^2 + 8134^2 .

It is a cyclic number.

It is not a de Polignac number, because 75790565 - 2⁴ = 75790549 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 3 ways as a sum of consecutive naturals, for example, 7579052 + ... + 7579061.

It is an arithmetic number, because the mean of its divisors is an integer number (22737171).

Almost surely, 2^75790565 is an apocalyptic number.

It is an amenable number.

75790565 is a deficient number, since it is larger than the sum of its proper divisors (15158119).

75790565 is a wasteful number, since it uses less digits than its factorization.

75790565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15158118.

The product of its (nonzero) digits is 330750, while the sum is 44.

The square root of 75790565 is about 8705.7776792197. Note that the first 3 decimals coincide. The cubic root of 75790565 is about 423.1929084882.

The spelling of 75790565 in words is "seventy-five million, seven hundred ninety thousand, five hundred sixty-five".