2505321445 has 16 divisors (see below), whose sum is σ = 3296188800. Its totient is φ = 1812888000.

The previous prime is 2505321443. The next prime is 2505321449. The reversal of 2505321445 is 5441235052.

2505321445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2505321445 - 2¹ = 2505321443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505321443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103506 + ... + 125395.

It is an arithmetic number, because the mean of its divisors is an integer number (206011800).

Almost surely, 2^2505321445 is an apocalyptic number.

It is an amenable number.

2505321445 is a deficient number, since it is larger than the sum of its proper divisors (790867355).

2505321445 is a wasteful number, since it uses less digits than its factorization.

2505321445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229116.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2505321445 is about 50053.1861623214. The cubic root of 2505321445 is about 1358.1711007854.

Adding to 2505321445 its reverse (5441235052), we get a palindrome (7946556497).

The spelling of 2505321445 in words is "two billion, five hundred five million, three hundred twenty-one thousand, four hundred forty-five".