2585387047 has 16 divisors (see below), whose sum is σ = 2757756672. Its totient is φ = 2415346560.

The previous prime is 2585387039. The next prime is 2585387069. The reversal of 2585387047 is 7407835852.

It is a cyclic number.

It is not a de Polignac number, because 2585387047 - 2³ = 2585387039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585387017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1479028 + ... + 1480774.

It is an arithmetic number, because the mean of its divisors is an integer number (172359792).

Almost surely, 2^2585387047 is an apocalyptic number.

2585387047 is a deficient number, since it is larger than the sum of its proper divisors (172369625).

2585387047 is a wasteful number, since it uses less digits than its factorization.

2585387047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358.

The product of its (nonzero) digits is 1881600, while the sum is 49.

The square root of 2585387047 is about 50846.7014367697. The cubic root of 2585387047 is about 1372.4878953327.

The spelling of 2585387047 in words is "two billion, five hundred eighty-five million, three hundred eighty-seven thousand, forty-seven".