25705189883 has 2 divisors, whose sum is σ = 25705189884. Its totient is φ = 25705189882.

The previous prime is 25705189871. The next prime is 25705189903. The reversal of 25705189883 is 38898150752.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25705189883 is a prime.

It is not a weakly prime, because it can be changed into another prime (25705189843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12852594941 + 12852594942.

It is an arithmetic number, because the mean of its divisors is an integer number (12852594942).

Almost surely, 2^25705189883 is an apocalyptic number.

25705189883 is a deficient number, since it is larger than the sum of its proper divisors (1).

25705189883 is an equidigital number, since it uses as much as digits as its factorization.

25705189883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 56.

The spelling of 25705189883 in words is "twenty-five billion, seven hundred five million, one hundred eighty-nine thousand, eight hundred eighty-three".