2543224155405 has 16 divisors (see below), whose sum is σ = 4069424748480. Its totient is φ = 1356297516288.

The previous prime is 2543224155337. The next prime is 2543224155547. The reversal of 2543224155405 is 5045514223452.

It is not a de Polignac number, because 2543224155405 - 2⁹ = 2543224154893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5306395 + ... + 5765784.

It is an arithmetic number, because the mean of its divisors is an integer number (254339046780).

Almost surely, 2^{2543224155405} is an apocalyptic number.

It is an amenable number.

2543224155405 is a deficient number, since it is larger than the sum of its proper divisors (1526200593075).

2543224155405 is a wasteful number, since it uses less digits than its factorization.

2543224155405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11087500.

The product of its (nonzero) digits is 960000, while the sum is 42.

Adding to 2543224155405 its reverse (5045514223452), we get a palindrome (7588738378857).

The spelling of 2543224155405 in words is "two trillion, five hundred forty-three billion, two hundred twenty-four million, one hundred fifty-five thousand, four hundred five".