2545440045 has 16 divisors (see below), whose sum is σ = 4104775680. Its totient is φ = 1346877504.

The previous prime is 2545440041. The next prime is 2545440059. The reversal of 2545440045 is 5400445452.

It is not a de Polignac number, because 2545440045 - 2² = 2545440041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2545439988 and 2545440015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545440041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666190 + ... + 669999.

It is an arithmetic number, because the mean of its divisors is an integer number (256548480).

Almost surely, 2^2545440045 is an apocalyptic number.

It is an amenable number.

2545440045 is a deficient number, since it is larger than the sum of its proper divisors (1559335635).

2545440045 is a wasteful number, since it uses less digits than its factorization.

2545440045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336324.

The product of its (nonzero) digits is 64000, while the sum is 33.

The square root of 2545440045 is about 50452.3542067167. The cubic root of 2545440045 is about 1365.3823694989.

Adding to 2545440045 its reverse (5400445452), we get a palindrome (7945885497).

The spelling of 2545440045 in words is "two billion, five hundred forty-five million, four hundred forty thousand, forty-five".