2545631344 has 20 divisors (see below), whose sum is σ = 4977413320. Its totient is φ = 1261137600.

The previous prime is 2545631327. The next prime is 2545631353. The reversal of 2545631344 is 4431365452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728082 + ... + 731569.

It is an arithmetic number, because the mean of its divisors is an integer number (248870666).

Almost surely, 2^2545631344 is an apocalyptic number.

It is an amenable number.

2545631344 is a deficient number, since it is larger than the sum of its proper divisors (2431781976).

2545631344 is a wasteful number, since it uses less digits than its factorization.

2545631344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459768 (or 1459762 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 2545631344 is about 50454.2500092906. The cubic root of 2545631344 is about 1365.4165731119.

Adding to 2545631344 its reverse (4431365452), we get a palindrome (6976996796).

The spelling of 2545631344 in words is "two billion, five hundred forty-five million, six hundred thirty-one thousand, three hundred forty-four".