1444445525 has 24 divisors (see below), whose sum is σ = 1836255240. Its totient is φ = 1126794240.

The previous prime is 1444445503. The next prime is 1444445533. The reversal of 1444445525 is 5255444441.

It can be written as a sum of positive squares in 12 ways, for example, as 844832356 + 599613169 = 29066^2 + 24487^2 .

It is not a de Polignac number, because 1444445525 - 2⁸ = 1444445269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157979 + ... + 166871.

It is an arithmetic number, because the mean of its divisors is an integer number (76510635).

Almost surely, 2^1444445525 is an apocalyptic number.

It is an amenable number.

1444445525 is a deficient number, since it is larger than the sum of its proper divisors (391809715).

1444445525 is an equidigital number, since it uses as much as digits as its factorization.

1444445525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9065 (or 9060 counting only the distinct ones).

The product of its digits is 256000, while the sum is 38.

The square root of 1444445525 is about 38005.8617189507. The cubic root of 1444445525 is about 1130.4040962143.

Adding to 1444445525 its reverse (5255444441), we get a palindrome (6699889966).

The spelling of 1444445525 in words is "one billion, four hundred forty-four million, four hundred forty-five thousand, five hundred twenty-five".