51320241 has 24 divisors (see below), whose sum is σ = 85887360. Its totient is φ = 28921536.

The previous prime is 51320239. The next prime is 51320249. The reversal of 51320241 is 14202315.

51320241 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 51320241 - 2¹ = 51320239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51320249) 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 23 ways as a sum of consecutive naturals, for example, 981 + ... + 10178.

It is an arithmetic number, because the mean of its divisors is an integer number (3578640).

Almost surely, 2^51320241 is an apocalyptic number.

It is an amenable number.

51320241 is a deficient number, since it is larger than the sum of its proper divisors (34567119).

51320241 is a wasteful number, since it uses less digits than its factorization.

51320241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11245 (or 11242 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 51320241 is about 7163.8146960959. The cubic root of 51320241 is about 371.6175613523.

Adding to 51320241 its reverse (14202315), we get a palindrome (65522556).

The spelling of 51320241 in words is "fifty-one million, three hundred twenty thousand, two hundred forty-one".