51648325 has 12 divisors (see below), whose sum is σ = 66110848. Its totient is φ = 39985200.

The previous prime is 51648323. The next prime is 51648353. The reversal of 51648325 is 52384615.

It is not a de Polignac number, because 51648325 - 2¹ = 51648323 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51648323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32547 + ... + 34096.

Almost surely, 2^51648325 is an apocalyptic number.

It is an amenable number.

51648325 is a deficient number, since it is larger than the sum of its proper divisors (14462523).

51648325 is a wasteful number, since it uses less digits than its factorization.

51648325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66684 (or 66679 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 51648325 is about 7186.6769093928. The cubic root of 51648325 is about 372.4077816250.

It can be divided in two parts, 516 and 48325, that added together give a square (48841 = 221²).

The spelling of 51648325 in words is "fifty-one million, six hundred forty-eight thousand, three hundred twenty-five".