25425500005 has 4 divisors (see below), whose sum is σ = 30510600012. Its totient is φ = 20340400000.

The previous prime is 25425499997. The next prime is 25425500011. The reversal of 25425500005 is 50000552452.

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 15977465604 + 9448034401 = 126402^2 + 97201^2 .

It is not a de Polignac number, because 25425500005 - 2³ = 25425499997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2542549996 + ... + 2542550005.

It is an arithmetic number, because the mean of its divisors is an integer number (7627650003).

Almost surely, 2^25425500005 is an apocalyptic number.

It is an amenable number.

25425500005 is a deficient number, since it is larger than the sum of its proper divisors (5085100007).

25425500005 is an equidigital number, since it uses as much as digits as its factorization.

25425500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085100006.

The product of its (nonzero) digits is 10000, while the sum is 28.

The spelling of 25425500005 in words is "twenty-five billion, four hundred twenty-five million, five hundred thousand, five".