25908254825 has 6 divisors (see below), whose sum is σ = 32126236014. Its totient is φ = 20726603840.

The previous prime is 25908254819. The next prime is 25908254833. The reversal of 25908254825 is 52845280952.

It can be written as a sum of positive squares in 3 ways, for example, as 9270608656 + 16637646169 = 96284^2 + 128987^2 .

It is not a de Polignac number, because 25908254825 - 2¹² = 25908250729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 518165072 + ... + 518165121.

It is an arithmetic number, because the mean of its divisors is an integer number (5354372669).

Almost surely, 2^25908254825 is an apocalyptic number.

25908254825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25908254825 is a deficient number, since it is larger than the sum of its proper divisors (6217981189).

25908254825 is a wasteful number, since it uses less digits than its factorization.

25908254825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036330203 (or 1036330198 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 25908254825 in words is "twenty-five billion, nine hundred eight million, two hundred fifty-four thousand, eight hundred twenty-five".