2587287256 has 32 divisors (see below), whose sum is σ = 5171040000. Its totient is φ = 1209366016.

The previous prime is 2587287251. The next prime is 2587287259. The reversal of 2587287256 is 6527827852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2587287251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43576 + ... + 84103.

It is an arithmetic number, because the mean of its divisors is an integer number (161595000).

Almost surely, 2^2587287256 is an apocalyptic number.

It is an amenable number.

2587287256 is a deficient number, since it is larger than the sum of its proper divisors (2583752744).

2587287256 is a wasteful number, since it uses less digits than its factorization.

2587287256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127851 (or 127847 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 52.

The square root of 2587287256 is about 50865.3836710193. The cubic root of 2587287256 is about 1372.8240635888.

The spelling of 2587287256 in words is "two billion, five hundred eighty-seven million, two hundred eighty-seven thousand, two hundred fifty-six".