51750379 has 2 divisors, whose sum is σ = 51750380. Its totient is φ = 51750378.

The previous prime is 51750367. The next prime is 51750401. The reversal of 51750379 is 97305715.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51750379 is a prime.

It is not a weakly prime, because it can be changed into another prime (51757379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25875189 + 25875190.

It is an arithmetic number, because the mean of its divisors is an integer number (25875190).

Almost surely, 2^51750379 is an apocalyptic number.

51750379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51750379 is an equidigital number, since it uses as much as digits as its factorization.

51750379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 51750379 is about 7193.7736272418. The cubic root of 51750379 is about 372.6529054108.

The spelling of 51750379 in words is "fifty-one million, seven hundred fifty thousand, three hundred seventy-nine".