51828347 has 2 divisors, whose sum is σ = 51828348. Its totient is φ = 51828346.

The previous prime is 51828331. The next prime is 51828353. The reversal of 51828347 is 74382815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51828347 - 2⁴ = 51828331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51828347.

It is not a weakly prime, because it can be changed into another prime (51828377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25914173 + 25914174.

It is an arithmetic number, because the mean of its divisors is an integer number (25914174).

Almost surely, 2^51828347 is an apocalyptic number.

51828347 is a deficient number, since it is larger than the sum of its proper divisors (1).

51828347 is an equidigital number, since it uses as much as digits as its factorization.

51828347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 51828347 is about 7199.1907184072. The cubic root of 51828347 is about 372.8399599013.

The spelling of 51828347 in words is "fifty-one million, eight hundred twenty-eight thousand, three hundred forty-seven".