51824693 has 2 divisors, whose sum is σ = 51824694. Its totient is φ = 51824692.

The previous prime is 51824677. The next prime is 51824719. The reversal of 51824693 is 39642815.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38850289 + 12974404 = 6233^2 + 3602^2 .

It is a cyclic number.

It is not a de Polignac number, because 51824693 - 2⁴ = 51824677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51824293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25912346 + 25912347.

It is an arithmetic number, because the mean of its divisors is an integer number (25912347).

Almost surely, 2^51824693 is an apocalyptic number.

It is an amenable number.

51824693 is a deficient number, since it is larger than the sum of its proper divisors (1).

51824693 is an equidigital number, since it uses as much as digits as its factorization.

51824693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 51824693 is about 7198.9369354093. The cubic root of 51824693 is about 372.8311977129.

The spelling of 51824693 in words is "fifty-one million, eight hundred twenty-four thousand, six hundred ninety-three".