51552224 has 24 divisors (see below), whose sum is σ = 101661840. Its totient is φ = 25733376.

The previous prime is 51552217. The next prime is 51552317. The reversal of 51552224 is 42225515.

51552224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51552193 and 51552202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28532 + ... + 30284.

It is an arithmetic number, because the mean of its divisors is an integer number (4235910).

Almost surely, 2^51552224 is an apocalyptic number.

It is an amenable number.

51552224 is a deficient number, since it is larger than the sum of its proper divisors (50109616).

51552224 is a wasteful number, since it uses less digits than its factorization.

51552224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2674 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 51552224 is about 7179.9877437221. The cubic root of 51552224 is about 372.1766609943.

Adding to 51552224 its reverse (42225515), we get a palindrome (93777739).

The spelling of 51552224 in words is "fifty-one million, five hundred fifty-two thousand, two hundred twenty-four".