51124424 has 16 divisors (see below), whose sum is σ = 103232220. Its totient is φ = 23595840.

The previous prime is 51124399. The next prime is 51124429. The reversal of 51124424 is 42442115.

It can be written as a sum of positive squares in 2 ways, for example, as 38663524 + 12460900 = 6218^2 + 3530^2 .

It is a super-2 number, since 2×51124424² = 5227413458663552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51124424.

It is not an unprimeable number, because it can be changed into a prime (51124429) 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, 245687 + ... + 245894.

Almost surely, 2^51124424 is an apocalyptic number.

It is an amenable number.

51124424 is an abundant number, since it is smaller than the sum of its proper divisors (52107796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51124424 is a wasteful number, since it uses less digits than its factorization.

51124424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491600 (or 491596 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 51124424 is about 7150.1345441887. The cubic root of 51124424 is about 371.1443121784.

Adding to 51124424 its reverse (42442115), we get a palindrome (93566539).

The spelling of 51124424 in words is "fifty-one million, one hundred twenty-four thousand, four hundred twenty-four".