2504002745 has 4 divisors (see below), whose sum is σ = 3004803300. Its totient is φ = 2003202192.

The previous prime is 2504002733. The next prime is 2504002747. The reversal of 2504002745 is 5472004052.

It is a happy number.

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 694691449 + 1809311296 = 26357^2 + 42536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2504002745 - 2⁴ = 2504002729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2504002747) 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, 250400270 + ... + 250400279.

It is an arithmetic number, because the mean of its divisors is an integer number (751200825).

Almost surely, 2^2504002745 is an apocalyptic number.

It is an amenable number.

2504002745 is a deficient number, since it is larger than the sum of its proper divisors (500800555).

2504002745 is an equidigital number, since it uses as much as digits as its factorization.

2504002745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500800554.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 2504002745 is about 50040.0114408460. The cubic root of 2504002745 is about 1357.9327634966.

Adding to 2504002745 its reverse (5472004052), we get a palindrome (7976006797).

The spelling of 2504002745 in words is "two billion, five hundred four million, two thousand, seven hundred forty-five".