5551447389 has 16 divisors (see below), whose sum is σ = 7485878400. Its totient is φ = 3659152896.

The previous prime is 5551447373. The next prime is 5551447453. The reversal of 5551447389 is 9837441555.

It is not a de Polignac number, because 5551447389 - 2⁴ = 5551447373 is a prime.

It is a super-2 number, since 2×5551447389² = 61637136225669834642, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551446389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118632 + ... + 158670.

It is an arithmetic number, because the mean of its divisors is an integer number (467867400).

Almost surely, 2^5551447389 is an apocalyptic number.

It is an amenable number.

5551447389 is a deficient number, since it is larger than the sum of its proper divisors (1934431011).

5551447389 is a wasteful number, since it uses less digits than its factorization.

5551447389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40564.

The product of its digits is 3024000, while the sum is 51.

The square root of 5551447389 is about 74508.0357344092. The cubic root of 5551447389 is about 1770.6609498136.

The spelling of 5551447389 in words is "five billion, five hundred fifty-one million, four hundred forty-seven thousand, three hundred eighty-nine".