25488866244828 has 240 divisors, whose sum is σ = 71586267540480. Its totient is φ = 7053750547200.

The previous prime is 25488866244773. The next prime is 25488866244847. The reversal of 25488866244828 is 82844266888452.

It is a self number, because there is not a number n which added to its sum of digits gives 25488866244828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 164121973 + ... + 164277203.

It is an arithmetic number, because the mean of its divisors is an integer number (298276114752).

Almost surely, 2^{25488866244828} is an apocalyptic number.

25488866244828 is a gapful number since it is divisible by the number (28) 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 25488866244828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35793133770240).

25488866244828 is an abundant number, since it is smaller than the sum of its proper divisors (46097401295652).

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

25488866244828 is a wasteful number, since it uses less digits than its factorization.

25488866244828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155446 (or 155423 counting only the distinct ones).

The product of its digits is 3019898880, while the sum is 75.

The spelling of 25488866244828 in words is "twenty-five trillion, four hundred eighty-eight billion, eight hundred sixty-six million, two hundred forty-four thousand, eight hundred twenty-eight".