55441431565 has 32 divisors (see below), whose sum is σ = 73229256576. Its totient is φ = 40047225600.

The previous prime is 55441431527. The next prime is 55441431571. The reversal of 55441431565 is 56513414455.

It is not a de Polignac number, because 55441431565 - 2¹⁵ = 55441398797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494022 + ... + 595768.

It is an arithmetic number, because the mean of its divisors is an integer number (2288414268).

Almost surely, 2^55441431565 is an apocalyptic number.

It is an amenable number.

55441431565 is a deficient number, since it is larger than the sum of its proper divisors (17787825011).

55441431565 is a wasteful number, since it uses less digits than its factorization.

55441431565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101949.

The product of its digits is 720000, while the sum is 43.

The spelling of 55441431565 in words is "fifty-five billion, four hundred forty-one million, four hundred thirty-one thousand, five hundred sixty-five".