51160565 has 8 divisors (see below), whose sum is σ = 65004120. Its totient is φ = 38520832.

The previous prime is 51160561. The next prime is 51160573. The reversal of 51160565 is 56506115.

It can be written as a sum of positive squares in 4 ways, for example, as 14303524 + 36857041 = 3782^2 + 6071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51160565 - 2² = 51160561 is a prime.

It is a super-2 number, since 2×51160565² = 5234806822238450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51160561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300860 + ... + 301029.

It is an arithmetic number, because the mean of its divisors is an integer number (8125515).

Almost surely, 2^51160565 is an apocalyptic number.

It is an amenable number.

51160565 is a deficient number, since it is larger than the sum of its proper divisors (13843555).

51160565 is a wasteful number, since it uses less digits than its factorization.

51160565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601911.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 51160565 is about 7152.6613927964. The cubic root of 51160565 is about 371.2317483195.

The spelling of 51160565 in words is "fifty-one million, one hundred sixty thousand, five hundred sixty-five".