25806060852 has 96 divisors (see below), whose sum is σ = 70780899840. Its totient is φ = 7214417280.

The previous prime is 25806060793. The next prime is 25806060857.

25806060852 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25806060857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4353963 + ... + 4359885.

It is an arithmetic number, because the mean of its divisors is an integer number (737301040).

Almost surely, 2^25806060852 is an apocalyptic number.

25806060852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25806060852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35390449920).

25806060852 is an abundant number, since it is smaller than the sum of its proper divisors (44974838988).

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

25806060852 is a wasteful number, since it uses less digits than its factorization.

25806060852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493 (or 8491 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 25806060852 in words is "twenty-five billion, eight hundred six million, sixty thousand, eight hundred fifty-two".