25278328760 has 64 divisors (see below), whose sum is σ = 58871992320. Its totient is φ = 9758321280.

The previous prime is 25278328739. The next prime is 25278328787. The reversal of 25278328760 is 6782387252.

It is a junction number, because it is equal to n+sod(n) for n = 25278328699 and 25278328708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427307 + ... + 482853.

It is an arithmetic number, because the mean of its divisors is an integer number (919874880).

Almost surely, 2^25278328760 is an apocalyptic number.

25278328760 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 25278328760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29435996160).

25278328760 is an abundant number, since it is smaller than the sum of its proper divisors (33593663560).

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

25278328760 is a wasteful number, since it uses less digits than its factorization.

25278328760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55956 (or 55952 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 25278328760 in words is "twenty-five billion, two hundred seventy-eight million, three hundred twenty-eight thousand, seven hundred sixty".