2585085385 has 8 divisors (see below), whose sum is σ = 3103705800. Its totient is φ = 2066999424.

The previous prime is 2585085379. The next prime is 2585085403. The reversal of 2585085385 is 5835805852.

It can be written as a sum of positive squares in 4 ways, for example, as 204718864 + 2380366521 = 14308^2 + 48789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2585085385 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122892 + ... + 142381.

It is an arithmetic number, because the mean of its divisors is an integer number (387963225).

Almost surely, 2^2585085385 is an apocalyptic number.

It is an amenable number.

2585085385 is a deficient number, since it is larger than the sum of its proper divisors (518620415).

2585085385 is a wasteful number, since it uses less digits than its factorization.

2585085385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267227.

The product of its (nonzero) digits is 1920000, while the sum is 49.

The square root of 2585085385 is about 50843.7349631201. The cubic root of 2585085385 is about 1372.4345127972.

The spelling of 2585085385 in words is "two billion, five hundred eighty-five million, eighty-five thousand, three hundred eighty-five".