25143421153243 has 2 divisors, whose sum is σ = 25143421153244. Its totient is φ = 25143421153242.

The previous prime is 25143421153231. The next prime is 25143421153273. The reversal of 25143421153243 is 34235112434152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25143421153243 - 2¹⁷ = 25143421022171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25143421153196 and 25143421153205.

It is not a weakly prime, because it can be changed into another prime (25143421153273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12571710576621 + 12571710576622.

It is an arithmetic number, because the mean of its divisors is an integer number (12571710576622).

Almost surely, 2^{25143421153243} is an apocalyptic number.

25143421153243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25143421153243 is an equidigital number, since it uses as much as digits as its factorization.

25143421153243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 40.

Adding to 25143421153243 its reverse (34235112434152), we get a palindrome (59378533587395).

The spelling of 25143421153243 in words is "twenty-five trillion, one hundred forty-three billion, four hundred twenty-one million, one hundred fifty-three thousand, two hundred forty-three".