2561552 has 20 divisors (see below), whose sum is σ = 5672256. Its totient is φ = 1097760.

The previous prime is 2561551. The next prime is 2561593. The reversal of 2561552 is 2551652.

It is not an unprimeable number, because it can be changed into a prime (2561551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11324 + ... + 11547.

2^2561552 is an apocalyptic number.

It is an amenable number.

2561552 is an abundant number, since it is smaller than the sum of its proper divisors (3110704).

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

2561552 is a wasteful number, since it uses less digits than its factorization.

2561552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22886 (or 22880 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 2561552 is about 1600.4849265145. The cubic root of 2561552 is about 136.8257147606.

Subtracting from 2561552 its product of digits (3000), we obtain a palindrome (2558552).

It can be divided in two parts, 2561 and 552, that added together give a palindrome (3113).

The spelling of 2561552 in words is "two million, five hundred sixty-one thousand, five hundred fifty-two".