4025440544 has 12 divisors (see below), whose sum is σ = 7925086134. Its totient is φ = 2012720256.

The previous prime is 4025440513. The next prime is 4025440553. The reversal of 4025440544 is 4450445204.

It can be written as a sum of positive squares in only one way, i.e., 3876307600 + 149132944 = 62260^2 + 12212^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 125795017 = 4025440544 / (4 + 0 + 2 + 5 + 4 + 4 + 0 + 5 + 4 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 4025440544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62897477 + ... + 62897540.

Almost surely, 2^4025440544 is an apocalyptic number.

It is an amenable number.

4025440544 is a deficient number, since it is larger than the sum of its proper divisors (3899645590).

4025440544 is a wasteful number, since it uses less digits than its factorization.

4025440544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125795027 (or 125795019 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

The square root of 4025440544 is about 63446.3595803573. The cubic root of 4025440544 is about 1590.7593045436.

Adding to 4025440544 its reverse (4450445204), we get a palindrome (8475885748).

The spelling of 4025440544 in words is "four billion, twenty-five million, four hundred forty thousand, five hundred forty-four".