5545144251 has 40 divisors (see below), whose sum is σ = 8581017984. Its totient is φ = 3564829440.

The previous prime is 5545144229. The next prime is 5545144291. The reversal of 5545144251 is 1524415455.

5545144251 is a `hidden beast` number, since 5 + 54 + 514 + 42 + 51 = 666.

It is not a de Polignac number, because 5545144251 - 2⁵ = 5545144219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5545144291) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 731955 + ... + 739491.

Almost surely, 2^5545144251 is an apocalyptic number.

5545144251 is a deficient number, since it is larger than the sum of its proper divisors (3035873733).

5545144251 is a wasteful number, since it uses less digits than its factorization.

5545144251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873 (or 7864 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 5545144251 is about 74465.7253439460. The cubic root of 5545144251 is about 1769.9905572607.

The spelling of 5545144251 in words is "five billion, five hundred forty-five million, one hundred forty-four thousand, two hundred fifty-one".