2555502858 has 80 divisors (see below), whose sum is σ = 5949599040. Its totient is φ = 819201600.

The previous prime is 2555502839. The next prime is 2555502863. The reversal of 2555502858 is 8582055552.

2555502858 is a `hidden beast` number, since 25 + 5 + 550 + 28 + 58 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 468873 + ... + 474291.

It is an arithmetic number, because the mean of its divisors is an integer number (74369988).

Almost surely, 2^2555502858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555502858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2974799520).

2555502858 is an abundant number, since it is smaller than the sum of its proper divisors (3394096182).

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

2555502858 is a wasteful number, since it uses less digits than its factorization.

2555502858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545 (or 5536 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 45.

The square root of 2555502858 is about 50551.9817415697. The cubic root of 2555502858 is about 1367.1792456696.

The spelling of 2555502858 in words is "two billion, five hundred fifty-five million, five hundred two thousand, eight hundred fifty-eight".