2565084987 has 48 divisors (see below), whose sum is σ = 4037529600. Its totient is φ = 1563287040.

The previous prime is 2565084983. The next prime is 2565085007. The reversal of 2565084987 is 7894805652.

2565084987 is a `hidden beast` number, since 2 + 56 + 508 + 4 + 9 + 87 = 666.

2565084987 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2565084987 - 2² = 2565084983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2565084983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3567214 + ... + 3567932.

It is an arithmetic number, because the mean of its divisors is an integer number (84115200).

Almost surely, 2^2565084987 is an apocalyptic number.

2565084987 is a deficient number, since it is larger than the sum of its proper divisors (1472444613).

2565084987 is a wasteful number, since it uses less digits than its factorization.

2565084987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The square root of 2565084987 is about 50646.6680740204. The cubic root of 2565084987 is about 1368.8859088665.

The spelling of 2565084987 in words is "two billion, five hundred sixty-five million, eighty-four thousand, nine hundred eighty-seven".