51304225 has 48 divisors (see below), whose sum is σ = 76979200. Its totient is φ = 33868800.

The previous prime is 51304223. The next prime is 51304241. The reversal of 51304225 is 52240315.

51304225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51304225 - 2¹ = 51304223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51304196 and 51304205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51304223) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 265729 + ... + 265921.

Almost surely, 2^51304225 is an apocalyptic number.

It is an amenable number.

51304225 is a deficient number, since it is larger than the sum of its proper divisors (25674975).

51304225 is a wasteful number, since it uses less digits than its factorization.

51304225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51304225 is about 7162.6967686759. The cubic root of 51304225 is about 371.5788992442.

It can be divided in two parts, 51304 and 225, that added together give a square (51529 = 227²).

The spelling of 51304225 in words is "fifty-one million, three hundred four thousand, two hundred twenty-five".