2505503445 has 32 divisors (see below), whose sum is σ = 4069171200. Its totient is φ = 1316196864.

The previous prime is 2505503417. The next prime is 2505503471. The reversal of 2505503445 is 5443055052.

It is not a de Polignac number, because 2505503445 - 2¹⁰ = 2505502421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1399611 + ... + 1401399.

It is an arithmetic number, because the mean of its divisors is an integer number (127161600).

Almost surely, 2^2505503445 is an apocalyptic number.

It is an amenable number.

2505503445 is a deficient number, since it is larger than the sum of its proper divisors (1563667755).

2505503445 is a wasteful number, since it uses less digits than its factorization.

2505503445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 60000, while the sum is 33.

The square root of 2505503445 is about 50055.0041953849. The cubic root of 2505503445 is about 1358.2039882692.

Adding to 2505503445 its reverse (5443055052), we get a palindrome (7948558497).

The spelling of 2505503445 in words is "two billion, five hundred five million, five hundred three thousand, four hundred forty-five".