55671445431 has 12 divisors (see below), whose sum is σ = 91902068752. Its totient is φ = 31812254496.

The previous prime is 55671445429. The next prime is 55671445447. The reversal of 55671445431 is 13454417655.

It is a happy number.

55671445431 is a `hidden beast` number, since 5 + 5 + 67 + 1 + 44 + 543 + 1 = 666.

It is not a de Polignac number, because 55671445431 - 2¹ = 55671445429 is a prime.

It is a super-2 number, since 2×55671445431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55671440431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441836806 + ... + 441836931.

Almost surely, 2^55671445431 is an apocalyptic number.

55671445431 is a deficient number, since it is larger than the sum of its proper divisors (36230623321).

55671445431 is a wasteful number, since it uses less digits than its factorization.

55671445431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883673750 (or 883673747 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 55671445431 in words is "fifty-five billion, six hundred seventy-one million, four hundred forty-five thousand, four hundred thirty-one".