2555181086850 has 768 divisors, whose sum is σ = 8649046425600. Its totient is φ = 542142720000.

The previous prime is 2555181086837. The next prime is 2555181086869. The reversal of 2555181086850 is 586801815552.

2555181086850 is a `hidden beast` number, since 2 + 5 + 5 + 518 + 10 + 8 + 68 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1418755950 + ... + 1418757750.

It is an arithmetic number, because the mean of its divisors is an integer number (11261779200).

Almost surely, 2^{2555181086850} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555181086850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4324523212800).

2555181086850 is an abundant number, since it is smaller than the sum of its proper divisors (6093865338750).

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

2555181086850 is a wasteful number, since it uses less digits than its factorization.

2555181086850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 54.

The spelling of 2555181086850 in words is "two trillion, five hundred fifty-five billion, one hundred eighty-one million, eighty-six thousand, eight hundred fifty".