25395071543 has 2 divisors, whose sum is σ = 25395071544. Its totient is φ = 25395071542.

The previous prime is 25395071539. The next prime is 25395071593. The reversal of 25395071543 is 34517059352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25395071543 - 2² = 25395071539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25395071494 and 25395071503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25395071593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12697535771 + 12697535772.

It is an arithmetic number, because the mean of its divisors is an integer number (12697535772).

Almost surely, 2^25395071543 is an apocalyptic number.

25395071543 is a deficient number, since it is larger than the sum of its proper divisors (1).

25395071543 is an equidigital number, since it uses as much as digits as its factorization.

25395071543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 25395071543 in words is "twenty-five billion, three hundred ninety-five million, seventy-one thousand, five hundred forty-three".