21825243105067 has 2 divisors, whose sum is σ = 21825243105068. Its totient is φ = 21825243105066.

The previous prime is 21825243105059. The next prime is 21825243105073. The reversal of 21825243105067 is 76050134252812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21825243105067 - 2³ = 21825243105059 is a prime.

It is a super-4 number, since 4×21825243105067⁴ (a number of 54 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (21825243105167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10912621552533 + 10912621552534.

It is an arithmetic number, because the mean of its divisors is an integer number (10912621552534).

Almost surely, 2^{21825243105067} is an apocalyptic number.

21825243105067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21825243105067 is an equidigital number, since it uses as much as digits as its factorization.

21825243105067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 46.

Adding to 21825243105067 its reverse (76050134252812), we get a palindrome (97875377357879).

The spelling of 21825243105067 in words is "twenty-one trillion, eight hundred twenty-five billion, two hundred forty-three million, one hundred five thousand, sixty-seven".