1253444425544 has 16 divisors (see below), whose sum is σ = 2488455845100. Its totient is φ = 589856200192.

The previous prime is 1253444425543. The next prime is 1253444425549. The reversal of 1253444425544 is 4455244443521.

It can be written as a sum of positive squares in 2 ways, for example, as 1216719302500 + 36725123044 = 1103050^2 + 191638^2 .

It is a super-2 number, since 2×1253444425544² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253444425543) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4608251429 + ... + 4608251700.

Almost surely, 2^{1253444425544} is an apocalyptic number.

It is an amenable number.

1253444425544 is a deficient number, since it is larger than the sum of its proper divisors (1235011419556).

1253444425544 is a wasteful number, since it uses less digits than its factorization.

1253444425544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9216503152 (or 9216503148 counting only the distinct ones).

The product of its digits is 6144000, while the sum is 47.

The spelling of 1253444425544 in words is "one trillion, two hundred fifty-three billion, four hundred forty-four million, four hundred twenty-five thousand, five hundred forty-four".