25555052760 has 128 divisors (see below), whose sum is σ = 77575449600. Its totient is φ = 6734246400.

The previous prime is 25555052753. The next prime is 25555052777. The reversal of 25555052760 is 6725055552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3566061 + ... + 3573219.

It is an arithmetic number, because the mean of its divisors is an integer number (606058200).

Almost surely, 2^25555052760 is an apocalyptic number.

25555052760 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 25555052760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38787724800).

25555052760 is an abundant number, since it is smaller than the sum of its proper divisors (52020396840).

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

25555052760 is a wasteful number, since it uses less digits than its factorization.

25555052760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521 (or 7517 counting only the distinct ones).

The product of its (nonzero) digits is 525000, while the sum is 42.

The spelling of 25555052760 in words is "twenty-five billion, five hundred fifty-five million, fifty-two thousand, seven hundred sixty".