2585550550 has 24 divisors (see below), whose sum is σ = 5246318232. Its totient is φ = 940200000.

The previous prime is 2585550547. The next prime is 2585550551. The reversal of 2585550550 is 550555852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2585550551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2349951 + ... + 2351050.

It is an arithmetic number, because the mean of its divisors is an integer number (218596593).

Almost surely, 2^2585550550 is an apocalyptic number.

2585550550 is an abundant number, since it is smaller than the sum of its proper divisors (2660767682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2585550550 is a wasteful number, since it uses less digits than its factorization.

2585550550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701024 (or 4701019 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 40.

The square root of 2585550550 is about 50848.3092147615. The cubic root of 2585550550 is about 1372.5168273203.

The spelling of 2585550550 in words is "two billion, five hundred eighty-five million, five hundred fifty thousand, five hundred fifty".