5445953281 has 6 divisors (see below), whose sum is σ = 5785147910. Its totient is φ = 5125602816.

The previous prime is 5445953273. The next prime is 5445953291. The reversal of 5445953281 is 1823595445.

It can be written as a sum of positive squares in 3 ways, for example, as 2091690225 + 3354263056 = 45735^2 + 57916^2 .

It is not a de Polignac number, because 5445953281 - 2³ = 5445953273 is a prime.

It is a super-2 number, since 2×5445953281² = 59316814277669329922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5445953291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9421776 + ... + 9422353.

Almost surely, 2^5445953281 is an apocalyptic number.

It is an amenable number.

5445953281 is a deficient number, since it is larger than the sum of its proper divisors (339194629).

5445953281 is a wasteful number, since it uses less digits than its factorization.

5445953281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18844163 (or 18844146 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

The square root of 5445953281 is about 73796.7023721250. The cubic root of 5445953281 is about 1759.3731928807.

The spelling of 5445953281 in words is "five billion, four hundred forty-five million, nine hundred fifty-three thousand, two hundred eighty-one".