25854537047 has 2 divisors, whose sum is σ = 25854537048. Its totient is φ = 25854537046.

The previous prime is 25854537019. The next prime is 25854537089. The reversal of 25854537047 is 74073545852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25854537047 - 2⁸ = 25854536791 is a prime.

It is a super-3 number, since 3×25854537047³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25854536986 and 25854537004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25854537847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12927268523 + 12927268524.

It is an arithmetic number, because the mean of its divisors is an integer number (12927268524).

Almost surely, 2^25854537047 is an apocalyptic number.

25854537047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25854537047 is an equidigital number, since it uses as much as digits as its factorization.

25854537047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704000, while the sum is 50.

It can be divided in two parts, 258545 and 37047, that added together give a palindrome (295592).

The spelling of 25854537047 in words is "twenty-five billion, eight hundred fifty-four million, five hundred thirty-seven thousand, forty-seven".