25259601952 has 48 divisors (see below), whose sum is σ = 53744705280. Its totient is φ = 11617028352.

The previous prime is 25259601947. The next prime is 25259601977. The reversal of 25259601952 is 25910695252.

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, 10449 + ... + 225007.

It is an arithmetic number, because the mean of its divisors is an integer number (1119681360).

Almost surely, 2^25259601952 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 25259601952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26872352640).

25259601952 is an abundant number, since it is smaller than the sum of its proper divisors (28485103328).

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

25259601952 is a wasteful number, since it uses less digits than its factorization.

25259601952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214865 (or 214857 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 46.

The spelling of 25259601952 in words is "twenty-five billion, two hundred fifty-nine million, six hundred one thousand, nine hundred fifty-two".