51524243 has 2 divisors, whose sum is σ = 51524244. Its totient is φ = 51524242.

The previous prime is 51524237. The next prime is 51524251. The reversal of 51524243 is 34242515.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51524243 - 2⁴ = 51524227 is a prime.

It is not a weakly prime, because it can be changed into another prime (51524293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25762121 + 25762122.

It is an arithmetic number, because the mean of its divisors is an integer number (25762122).

Almost surely, 2^51524243 is an apocalyptic number.

51524243 is a deficient number, since it is larger than the sum of its proper divisors (1).

51524243 is an equidigital number, since it uses as much as digits as its factorization.

51524243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 26.

The square root of 51524243 is about 7178.0389383173. The cubic root of 51524243 is about 372.1093133675.

Adding to 51524243 its reverse (34242515), we get a palindrome (85766758).

The spelling of 51524243 in words is "fifty-one million, five hundred twenty-four thousand, two hundred forty-three".