51928243 has 4 divisors (see below), whose sum is σ = 52014400. Its totient is φ = 51842088.

The previous prime is 51928237. The next prime is 51928249. The reversal of 51928243 is 34282915.

51928243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51928237) and next prime (51928249).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51928243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51928199 and 51928208.

It is not an unprimeable number, because it can be changed into a prime (51928249) 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 3 ways as a sum of consecutive naturals, for example, 42168 + ... + 43381.

It is an arithmetic number, because the mean of its divisors is an integer number (13003600).

Almost surely, 2^51928243 is an apocalyptic number.

51928243 is a deficient number, since it is larger than the sum of its proper divisors (86157).

51928243 is an equidigital number, since it uses as much as digits as its factorization.

51928243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86156.

The product of its digits is 17280, while the sum is 34.

The square root of 51928243 is about 7206.1253805356. The cubic root of 51928243 is about 373.0793483125.

The spelling of 51928243 in words is "fifty-one million, nine hundred twenty-eight thousand, two hundred forty-three".