2561852 has 6 divisors (see below), whose sum is σ = 4483248. Its totient is φ = 1280924.

The previous prime is 2561833. The next prime is 2561857. The reversal of 2561852 is 2581652.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320228 + ... + 320235.

It is an arithmetic number, because the mean of its divisors is an integer number (747208).

2^2561852 is an apocalyptic number.

It is an amenable number.

2561852 is a deficient number, since it is larger than the sum of its proper divisors (1921396).

2561852 is a wasteful number, since it uses less digits than its factorization.

2561852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640467 (or 640465 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 2561852 is about 1600.5786453655. The cubic root of 2561852 is about 136.8310560683.

Adding to 2561852 its product of digits (4800), we get a palindrome (2566652).

The spelling of 2561852 in words is "two million, five hundred sixty-one thousand, eight hundred fifty-two".