51452224 has 28 divisors (see below), whose sum is σ = 102499668. Its totient is φ = 25625600.

The previous prime is 51452213. The next prime is 51452227. The reversal of 51452224 is 42225415.

It can be written as a sum of positive squares in 2 ways, for example, as 31809600 + 19642624 = 5640^2 + 4432^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51452227) 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, 16554 + ... + 19414.

Almost surely, 2^51452224 is an apocalyptic number.

It is an amenable number.

51452224 is a deficient number, since it is larger than the sum of its proper divisors (51047444).

51452224 is a wasteful number, since it uses less digits than its factorization.

51452224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154 (or 3144 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 51452224 is about 7173.0205631937. The cubic root of 51452224 is about 371.9358582130.

Adding to 51452224 its reverse (42225415), we get a palindrome (93677639).

The spelling of 51452224 in words is "fifty-one million, four hundred fifty-two thousand, two hundred twenty-four".