25850479248 has 240 divisors, whose sum is σ = 81535424256. Its totient is φ = 7577660160.

The previous prime is 25850479189. The next prime is 25850479271. The reversal of 25850479248 is 84297405852.

25850479248 is a `hidden beast` number, since 2 + 5 + 8 + 504 + 7 + 92 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25850479194 and 25850479203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7286211 + ... + 7289757.

Almost surely, 2^25850479248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25850479248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40767712128).

25850479248 is an abundant number, since it is smaller than the sum of its proper divisors (55684945008).

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

25850479248 is a wasteful number, since it uses less digits than its factorization.

25850479248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 25850479248 in words is "twenty-five billion, eight hundred fifty million, four hundred seventy-nine thousand, two hundred forty-eight".