25625977952652 has 144 divisors (see below), whose sum is σ = 80778266080512. Its totient is φ = 6654646938240.

The previous prime is 25625977952639. The next prime is 25625977952693.

25625977952652 is a `hidden beast` number, since 2 + 5 + 6 + 2 + 5 + 97 + 7 + 9 + 526 + 5 + 2 = 666.

25625977952652 is nontrivially palindromic in base 10.

25625977952652 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11737383 + ... + 13748385.

Almost surely, 2^{25625977952652} is an apocalyptic number.

25625977952652 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 25625977952652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40389133040256).

25625977952652 is an abundant number, since it is smaller than the sum of its proper divisors (55152288127860).

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

25625977952652 is a wasteful number, since it uses less digits than its factorization.

25625977952652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015628 (or 2015623 counting only the distinct ones).

The product of its digits is 1428840000, while the sum is 72.

The spelling of 25625977952652 in words is "twenty-five trillion, six hundred twenty-five billion, nine hundred seventy-seven million, nine hundred fifty-two thousand, six hundred fifty-two".