2585171061 has 24 divisors (see below), whose sum is σ = 4077287136. Its totient is φ = 1565353440.

The previous prime is 2585171023. The next prime is 2585171063. The reversal of 2585171061 is 1601715852.

2585171061 is a `hidden beast` number, since 2 + 585 + 1 + 7 + 10 + 61 = 666.

It is not a de Polignac number, because 2585171061 - 2¹³ = 2585162869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585171063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103911 + ... + 126363.

It is an arithmetic number, because the mean of its divisors is an integer number (169886964).

Almost surely, 2^2585171061 is an apocalyptic number.

It is an amenable number.

2585171061 is a deficient number, since it is larger than the sum of its proper divisors (1492116075).

2585171061 is a wasteful number, since it uses less digits than its factorization.

2585171061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23633 (or 23630 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 2585171061 is about 50844.5774984904. The cubic root of 2585171061 is about 1372.4496745659.

The spelling of 2585171061 in words is "two billion, five hundred eighty-five million, one hundred seventy-one thousand, sixty-one".