2543303250505 has 4 divisors (see below), whose sum is σ = 3051963900612. Its totient is φ = 2034642600400.

The previous prime is 2543303250497. The next prime is 2543303250529. The reversal of 2543303250505 is 5050523033452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1267083419904 + 1276219830601 = 1125648^2 + 1129699^2 .

It is not a de Polignac number, because 2543303250505 - 2³ = 2543303250497 is a prime.

It is a Duffinian number.

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, 254330325046 + ... + 254330325055.

It is an arithmetic number, because the mean of its divisors is an integer number (762990975153).

Almost surely, 2^{2543303250505} is an apocalyptic number.

It is an amenable number.

2543303250505 is a deficient number, since it is larger than the sum of its proper divisors (508660650107).

2543303250505 is an equidigital number, since it uses as much as digits as its factorization.

2543303250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508660650106.

The product of its (nonzero) digits is 270000, while the sum is 37.

Adding to 2543303250505 its reverse (5050523033452), we get a palindrome (7593826283957).

The spelling of 2543303250505 in words is "two trillion, five hundred forty-three billion, three hundred three million, two hundred fifty thousand, five hundred five".