2505103445 has 16 divisors (see below), whose sum is σ = 3247800192. Its totient is φ = 1843959360.

The previous prime is 2505103429. The next prime is 2505103457. The reversal of 2505103445 is 5443015052.

It is not a de Polignac number, because 2505103445 - 2⁴ = 2505103429 is a prime.

It is a Curzon number.

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, 41747 + ... + 82176.

It is an arithmetic number, because the mean of its divisors is an integer number (202987512).

Almost surely, 2^2505103445 is an apocalyptic number.

It is an amenable number.

2505103445 is a deficient number, since it is larger than the sum of its proper divisors (742696747).

2505103445 is a wasteful number, since it uses less digits than its factorization.

2505103445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124252.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2505103445 is about 50051.0084313993. The cubic root of 2505103445 is about 1358.1317059886.

Adding to 2505103445 its reverse (5443015052), we get a palindrome (7948118497).

The spelling of 2505103445 in words is "two billion, five hundred five million, one hundred three thousand, four hundred forty-five".