55643554062311 has 16 divisors (see below), whose sum is σ = 56612877180384. Its totient is φ = 54679924260864.

The previous prime is 55643554062289. The next prime is 55643554062329. The reversal of 55643554062311 is 11326045534655.

It is not a de Polignac number, because 55643554062311 - 2¹⁸ = 55643553800167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55643554062311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55643554062391) 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, 83233895 + ... + 83899751.

It is an arithmetic number, because the mean of its divisors is an integer number (3538304823774).

Almost surely, 2^{55643554062311} is an apocalyptic number.

55643554062311 is a deficient number, since it is larger than the sum of its proper divisors (969323118073).

55643554062311 is a wasteful number, since it uses less digits than its factorization.

55643554062311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670130.

The product of its (nonzero) digits is 6480000, while the sum is 50.

Adding to 55643554062311 its reverse (11326045534655), we get a palindrome (66969599596966).

The spelling of 55643554062311 in words is "fifty-five trillion, six hundred forty-three billion, five hundred fifty-four million, sixty-two thousand, three hundred eleven".