25065125005 has 4 divisors (see below), whose sum is σ = 30078150012. Its totient is φ = 20052100000.

The previous prime is 25065124961. The next prime is 25065125069. The reversal of 25065125005 is 50052156052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2808364036 + 22256760969 = 52994^2 + 149187^2 .

It is not a de Polignac number, because 25065125005 - 2²⁷ = 24930907277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2506512496 + ... + 2506512505.

It is an arithmetic number, because the mean of its divisors is an integer number (7519537503).

Almost surely, 2^25065125005 is an apocalyptic number.

It is an amenable number.

25065125005 is a deficient number, since it is larger than the sum of its proper divisors (5013025007).

25065125005 is an equidigital number, since it uses as much as digits as its factorization.

25065125005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013025006.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 25065125005 in words is "twenty-five billion, sixty-five million, one hundred twenty-five thousand, five".