25083251520 has 112 divisors (see below), whose sum is σ = 79981836480. Its totient is φ = 6660100096.

The previous prime is 25083251507. The next prime is 25083251521. The reversal of 25083251520 is 2515238052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25083251521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167611 + ... + 279749.

It is an arithmetic number, because the mean of its divisors is an integer number (714123540).

Almost surely, 2^25083251520 is an apocalyptic number.

25083251520 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 25083251520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39990918240).

25083251520 is an abundant number, since it is smaller than the sum of its proper divisors (54898584960).

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

25083251520 is a wasteful number, since it uses less digits than its factorization.

25083251520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112392 (or 112382 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 25083251520 its reverse (2515238052), we get a palindrome (27598489572).

The spelling of 25083251520 in words is "twenty-five billion, eighty-three million, two hundred fifty-one thousand, five hundred twenty".