25852931520 has 224 divisors, whose sum is σ = 89897955840. Its totient is φ = 6255759360.

The previous prime is 25852931393. The next prime is 25852931521. The reversal of 25852931520 is 2513925852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25852931521) 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, 718765 + ... + 753875.

It is an arithmetic number, because the mean of its divisors is an integer number (401330160).

Almost surely, 2^25852931520 is an apocalyptic number.

25852931520 is a gapful number since it is divisible by the number (20) 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 25852931520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44948977920).

25852931520 is an abundant number, since it is smaller than the sum of its proper divisors (64045024320).

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

25852931520 is a wasteful number, since it uses less digits than its factorization.

25852931520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35203 (or 35193 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 25852931520 in words is "twenty-five billion, eight hundred fifty-two million, nine hundred thirty-one thousand, five hundred twenty".