51165063 has 12 divisors (see below), whose sum is σ = 74470968. Its totient is φ = 33848880.

The previous prime is 51165029. The next prime is 51165083. The reversal of 51165063 is 36056115.

It is a happy number.

51165063 is a `hidden beast` number, since 5 + 1 + 1 + 650 + 6 + 3 = 666.

It is not a de Polignac number, because 51165063 - 2⁸ = 51164807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51165013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20520 + ... + 22877.

It is an arithmetic number, because the mean of its divisors is an integer number (6205914).

Almost surely, 2^51165063 is an apocalyptic number.

51165063 is a deficient number, since it is larger than the sum of its proper divisors (23305905).

51165063 is a wasteful number, since it uses less digits than its factorization.

51165063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43534 (or 43531 counting only the distinct ones).

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

The square root of 51165063 is about 7152.9758143027. The cubic root of 51165063 is about 371.2426274766.

The spelling of 51165063 in words is "fifty-one million, one hundred sixty-five thousand, sixty-three".