51845383 has 2 divisors, whose sum is σ = 51845384. Its totient is φ = 51845382.

The previous prime is 51845363. The next prime is 51845389. The reversal of 51845383 is 38354815.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51845383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51845389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25922691 + 25922692.

It is an arithmetic number, because the mean of its divisors is an integer number (25922692).

Almost surely, 2^51845383 is an apocalyptic number.

51845383 is a deficient number, since it is larger than the sum of its proper divisors (1).

51845383 is an equidigital number, since it uses as much as digits as its factorization.

51845383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 51845383 is about 7200.3738097407. The cubic root of 51845383 is about 372.8808063114.

The spelling of 51845383 in words is "fifty-one million, eight hundred forty-five thousand, three hundred eighty-three".