2545004403 has 12 divisors (see below), whose sum is σ = 3745478880. Its totient is φ = 1664656656.

The previous prime is 2545004389. The next prime is 2545004459. The reversal of 2545004403 is 3044005452.

2545004403 is a `hidden beast` number, since 254 + 5 + 0 + 0 + 4 + 403 = 666.

It is not a de Polignac number, because 2545004403 - 2⁶ = 2545004339 is a prime.

It is a super-2 number, since 2×2545004403² = 12954094822578772818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2545004503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2667243 + ... + 2668196.

It is an arithmetic number, because the mean of its divisors is an integer number (312123240).

Almost surely, 2^2545004403 is an apocalyptic number.

2545004403 is a deficient number, since it is larger than the sum of its proper divisors (1200474477).

2545004403 is a wasteful number, since it uses less digits than its factorization.

2545004403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335498 (or 5335495 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2545004403 is about 50448.0366614995. The cubic root of 2545004403 is about 1365.3044717900.

Adding to 2545004403 its reverse (3044005452), we get a palindrome (5589009855).

The spelling of 2545004403 in words is "two billion, five hundred forty-five million, four thousand, four hundred three".