2587255188 has 96 divisors (see below), whose sum is σ = 7271147520. Its totient is φ = 700022400.

The previous prime is 2587255169. The next prime is 2587255199. The reversal of 2587255188 is 8815527852.

It is a self number, because there is not a number n which added to its sum of digits gives 2587255188.

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, 188503 + ... + 201761.

It is an arithmetic number, because the mean of its divisors is an integer number (75741120).

Almost surely, 2^2587255188 is an apocalyptic number.

2587255188 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 2587255188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3635573760).

2587255188 is an abundant number, since it is smaller than the sum of its proper divisors (4683892332).

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

2587255188 is a wasteful number, since it uses less digits than its factorization.

2587255188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13397 (or 13395 counting only the distinct ones).

The product of its digits is 1792000, while the sum is 51.

The square root of 2587255188 is about 50865.0684458401. The cubic root of 2587255188 is about 1372.8183917661.

The spelling of 2587255188 in words is "two billion, five hundred eighty-seven million, two hundred fifty-five thousand, one hundred eighty-eight".