2543505404 has 24 divisors (see below), whose sum is σ = 4947406128. Its totient is φ = 1134323840.

The previous prime is 2543505403. The next prime is 2543505431. The reversal of 2543505404 is 4045053452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543505401) 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, 543017 + ... + 547680.

It is an arithmetic number, because the mean of its divisors is an integer number (206141922).

Almost surely, 2^2543505404 is an apocalyptic number.

It is an amenable number.

2543505404 is a deficient number, since it is larger than the sum of its proper divisors (2403900724).

2543505404 is a wasteful number, since it uses less digits than its factorization.

2543505404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090765 (or 1090763 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 2543505404 is about 50433.1776115684. The cubic root of 2543505404 is about 1365.0363659040.

Adding to 2543505404 its reverse (4045053452), we get a palindrome (6588558856).

The spelling of 2543505404 in words is "two billion, five hundred forty-three million, five hundred five thousand, four hundred four".