2855512 has 32 divisors (see below), whose sum is σ = 6005520. Its totient is φ = 1261440.

The previous prime is 2855497. The next prime is 2855513. The reversal of 2855512 is 2155582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2818 + ... + 3694.

2^2855512 is an apocalyptic number.

2855512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2855512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3002760).

2855512 is an abundant number, since it is smaller than the sum of its proper divisors (3150008).

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

2855512 is a wasteful number, since it uses less digits than its factorization.

2855512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 927 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 2855512 is about 1689.8260265483. The cubic root of 2855512 is about 141.8713375341.

The spelling of 2855512 in words is "two million, eight hundred fifty-five thousand, five hundred twelve".