51163065 has 24 divisors (see below), whose sum is σ = 89568648. Its totient is φ = 27014400.

The previous prime is 51163043. The next prime is 51163117. The reversal of 51163065 is 56036115.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26749584 + 24413481 = 5172^2 + 4941^2 .

It is not a de Polignac number, because 51163065 - 2¹⁵ = 51130297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1084 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (3732027).

Almost surely, 2^51163065 is an apocalyptic number.

It is an amenable number.

51163065 is a deficient number, since it is larger than the sum of its proper divisors (38405583).

51163065 is a wasteful number, since it uses less digits than its factorization.

51163065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11369 (or 11366 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51163065 is about 7152.8361507866. The cubic root of 51163065 is about 371.2377950618.

The spelling of 51163065 in words is "fifty-one million, one hundred sixty-three thousand, sixty-five".