25425259208 has 32 divisors (see below), whose sum is σ = 48492164160. Its totient is φ = 12494345280.

The previous prime is 25425259199. The next prime is 25425259217. The reversal of 25425259208 is 80295252452.

It is a Cunningham number, because it is equal to 159453²-1.

It is an interprime number because it is at equal distance from previous prime (25425259199) and next prime (25425259217).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617885 + ... + 657747.

It is an arithmetic number, because the mean of its divisors is an integer number (1515380130).

Almost surely, 2^25425259208 is an apocalyptic number.

It is an amenable number.

25425259208 is a deficient number, since it is larger than the sum of its proper divisors (23066904952).

25425259208 is a wasteful number, since it uses less digits than its factorization.

25425259208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41237 (or 41233 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 25425259208 in words is "twenty-five billion, four hundred twenty-five million, two hundred fifty-nine thousand, two hundred eight".