1253523344 has 20 divisors (see below), whose sum is σ = 2432149020. Its totient is φ = 625872000.

The previous prime is 1253523331. The next prime is 1253523377. The reversal of 1253523344 is 4433253521.

It can be written as a sum of positive squares in 2 ways, for example, as 614444944 + 639078400 = 24788^2 + 25280^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1253523344.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43907 + ... + 66594.

It is an arithmetic number, because the mean of its divisors is an integer number (121607451).

Almost surely, 2^1253523344 is an apocalyptic number.

It is an amenable number.

1253523344 is a deficient number, since it is larger than the sum of its proper divisors (1178625676).

1253523344 is a wasteful number, since it uses less digits than its factorization.

1253523344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111218 (or 111212 counting only the distinct ones).

The product of its digits is 43200, while the sum is 32.

The square root of 1253523344 is about 35405.1316054608. The cubic root of 1253523344 is about 1078.2285041722.

Adding to 1253523344 its reverse (4433253521), we get a palindrome (5686776865).

The spelling of 1253523344 in words is "one billion, two hundred fifty-three million, five hundred twenty-three thousand, three hundred forty-four".