25525505248 has 24 divisors (see below), whose sum is σ = 52438267728. Its totient is φ = 12207849984.

The previous prime is 25525505233. The next prime is 25525505311. The reversal of 25525505248 is 84250552552.

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, 17339961 + ... + 17341432.

It is an arithmetic number, because the mean of its divisors is an integer number (2184927822).

Almost surely, 2^25525505248 is an apocalyptic number.

It is an amenable number.

25525505248 is an abundant number, since it is smaller than the sum of its proper divisors (26912762480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25525505248 is a wasteful number, since it uses less digits than its factorization.

25525505248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34681426 (or 34681418 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 43.

The spelling of 25525505248 in words is "twenty-five billion, five hundred twenty-five million, five hundred five thousand, two hundred forty-eight".