51041065 has 4 divisors (see below), whose sum is σ = 61249284. Its totient is φ = 40832848.

The previous prime is 51041063. The next prime is 51041113. The reversal of 51041065 is 56014015.

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 14220441 + 36820624 = 3771^2 + 6068^2 .

It is a cyclic number.

It is not a de Polignac number, because 51041065 - 2¹ = 51041063 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51041063) 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, 5104102 + ... + 5104111.

It is an arithmetic number, because the mean of its divisors is an integer number (15312321).

Almost surely, 2^51041065 is an apocalyptic number.

It is an amenable number.

51041065 is a deficient number, since it is larger than the sum of its proper divisors (10208219).

51041065 is a wasteful number, since it uses less digits than its factorization.

51041065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10208218.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51041065 is about 7144.3029750984. The cubic root of 51041065 is about 370.9424839941.

The spelling of 51041065 in words is "fifty-one million, forty-one thousand, sixty-five".