2544972385 has 12 divisors (see below), whose sum is σ = 3223163988. Its totient is φ = 1928819808.

The previous prime is 2544972383. The next prime is 2544972389. The reversal of 2544972385 is 5832794452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 699496704 + 1845475681 = 26448^2 + 42959^2 .

It is not a de Polignac number, because 2544972385 - 2¹ = 2544972383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2544972383) 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, 703174 + ... + 706783.

It is an arithmetic number, because the mean of its divisors is an integer number (268596999).

Almost surely, 2^2544972385 is an apocalyptic number.

It is an amenable number.

2544972385 is a deficient number, since it is larger than the sum of its proper divisors (678191603).

2544972385 is a wasteful number, since it uses less digits than its factorization.

2544972385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410000 (or 1409981 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 49.

The square root of 2544972385 is about 50447.7193240686. The cubic root of 2544972385 is about 1365.2987462594.

The spelling of 2544972385 in words is "two billion, five hundred forty-four million, nine hundred seventy-two thousand, three hundred eighty-five".