51824393 has 2 divisors, whose sum is σ = 51824394. Its totient is φ = 51824392.

The previous prime is 51824371. The next prime is 51824459. The reversal of 51824393 is 39342815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32569849 + 19254544 = 5707^2 + 4388^2 .

It is a cyclic number.

It is not a de Polignac number, because 51824393 - 2¹² = 51820297 is a prime.

It is not a weakly prime, because it can be changed into another prime (51824323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25912196 + 25912197.

It is an arithmetic number, because the mean of its divisors is an integer number (25912197).

Almost surely, 2^51824393 is an apocalyptic number.

It is an amenable number.

51824393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51824393 is an equidigital number, since it uses as much as digits as its factorization.

51824393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 51824393 is about 7198.9160989693. The cubic root of 51824393 is about 372.8304783031.

The spelling of 51824393 in words is "fifty-one million, eight hundred twenty-four thousand, three hundred ninety-three".