51124163 has 4 divisors (see below), whose sum is σ = 51824568. Its totient is φ = 50423760.

The previous prime is 51124159. The next prime is 51124169. The reversal of 51124163 is 36142115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51124163 - 2² = 51124159 is a prime.

It is a super-2 number, since 2×51124163² = 5227360084901138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51124169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350093 + ... + 350238.

It is an arithmetic number, because the mean of its divisors is an integer number (12956142).

Almost surely, 2^51124163 is an apocalyptic number.

51124163 is a deficient number, since it is larger than the sum of its proper divisors (700405).

51124163 is an equidigital number, since it uses as much as digits as its factorization.

51124163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700404.

The product of its digits is 720, while the sum is 23.

The square root of 51124163 is about 7150.1162927606. The cubic root of 51124163 is about 371.1436805897.

Adding to 51124163 its reverse (36142115), we get a palindrome (87266278).

The spelling of 51124163 in words is "fifty-one million, one hundred twenty-four thousand, one hundred sixty-three".