2543560 has 16 divisors (see below), whose sum is σ = 5723100. Its totient is φ = 1017408.

The previous prime is 2543551. The next prime is 2543573. The reversal of 2543560 is 653452.

It can be written as a sum of positive squares in 2 ways, for example, as 2452356 + 91204 = 1566^2 + 302^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31755 + ... + 31834.

2^2543560 is an apocalyptic number.

2543560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543560 is an abundant number, since it is smaller than the sum of its proper divisors (3179540).

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

2543560 is a wasteful number, since it uses less digits than its factorization.

2543560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63600 (or 63596 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2543560 is about 1594.8542253134. The cubic root of 2543560 is about 136.5046132608.

The spelling of 2543560 in words is "two million, five hundred forty-three thousand, five hundred sixty".