2543601 has 8 divisors (see below), whose sum is σ = 3400384. Its totient is φ = 1691280.

The previous prime is 2543573. The next prime is 2543609. The reversal of 2543601 is 1063452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2543601 - 2⁶ = 2543537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543609) 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, 591 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (425048).

2^2543601 is an apocalyptic number.

It is an amenable number.

2543601 is a deficient number, since it is larger than the sum of its proper divisors (856783).

2543601 is a wasteful number, since it uses less digits than its factorization.

2543601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2543601 is about 1594.8670791010. The cubic root of 2543601 is about 136.5053467025.

The spelling of 2543601 in words is "two million, five hundred forty-three thousand, six hundred one".