55641230212211 has 16 divisors (see below), whose sum is σ = 64377314421504. Its totient is φ = 47102358704544.

The previous prime is 55641230212193. The next prime is 55641230212241. The reversal of 55641230212211 is 11221203214655.

It is a cyclic number.

It is not a de Polignac number, because 55641230212211 - 2¹⁸ = 55641229950067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55641230212241) 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, 14002385 + ... + 17531378.

It is an arithmetic number, because the mean of its divisors is an integer number (4023582151344).

Almost surely, 2^{55641230212211} is an apocalyptic number.

55641230212211 is a deficient number, since it is larger than the sum of its proper divisors (8736084209293).

55641230212211 is a wasteful number, since it uses less digits than its factorization.

55641230212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31536890.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 55641230212211 its reverse (11221203214655), we get a palindrome (66862433426866).

The spelling of 55641230212211 in words is "fifty-five trillion, six hundred forty-one billion, two hundred thirty million, two hundred twelve thousand, two hundred eleven".