5566555431 has 6 divisors (see below), whose sum is σ = 8040580080. Its totient is φ = 3711036948.

The previous prime is 5566555409. The next prime is 5566555451. The reversal of 5566555431 is 1345556655.

5566555431 is a `hidden beast` number, since 5 + 5 + 6 + 65 + 554 + 31 = 666.

It is not a de Polignac number, because 5566555431 - 2⁵ = 5566555399 is a prime.

It is a super-2 number, since 2×5566555431² = 61973078732791191522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5566555451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309253071 + ... + 309253088.

It is an arithmetic number, because the mean of its divisors is an integer number (1340096680).

Almost surely, 2^5566555431 is an apocalyptic number.

5566555431 is a deficient number, since it is larger than the sum of its proper divisors (2474024649).

5566555431 is a wasteful number, since it uses less digits than its factorization.

5566555431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618506165 (or 618506162 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 45.

The square root of 5566555431 is about 74609.3521684782. The cubic root of 5566555431 is about 1772.2657558693.

The spelling of 5566555431 in words is "five billion, five hundred sixty-six million, five hundred fifty-five thousand, four hundred thirty-one".