2505602243 has 4 divisors (see below), whose sum is σ = 2530410288. Its totient is φ = 2480794200.

The previous prime is 2505602237. The next prime is 2505602261. The reversal of 2505602243 is 3422065052.

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

It is a cyclic number.

It is not a de Polignac number, because 2505602243 - 2⁴ = 2505602227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505602213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12403871 + ... + 12404072.

It is an arithmetic number, because the mean of its divisors is an integer number (632602572).

Almost surely, 2^2505602243 is an apocalyptic number.

2505602243 is a deficient number, since it is larger than the sum of its proper divisors (24808045).

2505602243 is a wasteful number, since it uses less digits than its factorization.

2505602243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24808044.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2505602243 is about 50055.9910799896. The cubic root of 2505602243 is about 1358.2218404463.

Adding to 2505602243 its reverse (3422065052), we get a palindrome (5927667295).

The spelling of 2505602243 in words is "two billion, five hundred five million, six hundred two thousand, two hundred forty-three".