2543550 has 48 divisors (see below), whose sum is σ = 6523392. Its totient is φ = 655200.

The previous prime is 2543537. The next prime is 2543551. The reversal of 2543550 is 553452.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2543550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4377 + ... + 4923.

It is an arithmetic number, because the mean of its divisors is an integer number (135904).

2^2543550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3261696).

2543550 is an abundant number, since it is smaller than the sum of its proper divisors (3979842).

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

2543550 is a wasteful number, since it uses less digits than its factorization.

2543550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 2543550 is about 1594.8510902275. The cubic root of 2543550 is about 136.5044343714.

The spelling of 2543550 in words is "two million, five hundred forty-three thousand, five hundred fifty".