25255755252 has 144 divisors (see below), whose sum is σ = 80056529280. Its totient is φ = 6535137024.

The previous prime is 25255755209. The next prime is 25255755269.

25255755252 is a `hidden beast` number, since 2 + 5 + 2 + 55 + 75 + 525 + 2 = 666.

25255755252 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 25255755198 and 25255755207.

It is a congruent number.

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, 100899 + ... + 246357.

It is an arithmetic number, because the mean of its divisors is an integer number (555948120).

Almost surely, 2^25255755252 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 25255755252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40028264640).

25255755252 is an abundant number, since it is smaller than the sum of its proper divisors (54800774028).

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

25255755252 is a wasteful number, since it uses less digits than its factorization.

25255755252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145542 (or 145537 counting only the distinct ones).

The product of its digits is 1750000, while the sum is 45.

The spelling of 25255755252 in words is "twenty-five billion, two hundred fifty-five million, seven hundred fifty-five thousand, two hundred fifty-two".