51224163 has 8 divisors (see below), whose sum is σ = 68797968. Its totient is φ = 33899904.

The previous prime is 51224161. The next prime is 51224167. The reversal of 51224163 is 36142215.

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

It is not a de Polignac number, because 51224163 - 2¹ = 51224161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51224161) 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, 61906 + ... + 62727.

It is an arithmetic number, because the mean of its divisors is an integer number (8599746).

Almost surely, 2^51224163 is an apocalyptic number.

51224163 is a deficient number, since it is larger than the sum of its proper divisors (17573805).

51224163 is a wasteful number, since it uses less digits than its factorization.

51224163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124773.

The product of its digits is 1440, while the sum is 24.

The square root of 51224163 is about 7157.1057697927. The cubic root of 51224163 is about 371.3855114142.

Adding to 51224163 its reverse (36142215), we get a palindrome (87366378).

The spelling of 51224163 in words is "fifty-one million, two hundred twenty-four thousand, one hundred sixty-three".