55431444445 has 32 divisors (see below), whose sum is σ = 73319178240. Its totient is φ = 39975133440.

The previous prime is 55431444443. The next prime is 55431444461. The reversal of 55431444445 is 54444413455.

It is not a de Polignac number, because 55431444445 - 2¹ = 55431444443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55431444443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1388676 + ... + 1428034.

It is an arithmetic number, because the mean of its divisors is an integer number (2291224320).

Almost surely, 2^55431444445 is an apocalyptic number.

It is an amenable number.

55431444445 is a deficient number, since it is larger than the sum of its proper divisors (17887733795).

55431444445 is a wasteful number, since it uses less digits than its factorization.

55431444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39885.

The product of its digits is 1536000, while the sum is 43.

The spelling of 55431444445 in words is "fifty-five billion, four hundred thirty-one million, four hundred forty-four thousand, four hundred forty-five".