51150565 has 16 divisors (see below), whose sum is σ = 65836800. Its totient is φ = 38031552.

The previous prime is 51150557. The next prime is 51150571. The reversal of 51150565 is 56505115.

It is a cyclic number.

It is not a de Polignac number, because 51150565 - 2³ = 51150557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45 + ... + 10114.

It is an arithmetic number, because the mean of its divisors is an integer number (4114800).

Almost surely, 2^51150565 is an apocalyptic number.

It is an amenable number.

51150565 is a deficient number, since it is larger than the sum of its proper divisors (14686235).

51150565 is a wasteful number, since it uses less digits than its factorization.

51150565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 51150565 is about 7151.9623181334. The cubic root of 51150565 is about 371.2075593804.

It can be divided in two parts, 51150 and 565, that added together give a palindrome (51715).

The spelling of 51150565 in words is "fifty-one million, one hundred fifty thousand, five hundred sixty-five".