25202220252 has 72 divisors (see below), whose sum is σ = 64895556096. Its totient is φ = 7606500000.

The previous prime is 25202220223. The next prime is 25202220287.

25202220252 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329877 + ... + 399027.

It is an arithmetic number, because the mean of its divisors is an integer number (901327168).

Almost surely, 2^25202220252 is an apocalyptic number.

25202220252 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 25202220252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32447778048).

25202220252 is an abundant number, since it is smaller than the sum of its proper divisors (39693335844).

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

25202220252 is a wasteful number, since it uses less digits than its factorization.

25202220252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69431 (or 69418 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The spelling of 25202220252 in words is "twenty-five billion, two hundred two million, two hundred twenty thousand, two hundred fifty-two".