55064243640211 has 16 divisors (see below), whose sum is σ = 59452645740768. Its totient is φ = 50697675072000.

The previous prime is 55064243640157. The next prime is 55064243640223. The reversal of 55064243640211 is 11204634246055.

It is a cyclic number.

It is not a de Polignac number, because 55064243640211 - 2¹⁹ = 55064243115923 is a prime.

It is a super-2 number, since 2×55064243640211² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55064243640281) 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, 64955100 + ... + 65797366.

It is an arithmetic number, because the mean of its divisors is an integer number (3715790358798).

Almost surely, 2^{55064243640211} is an apocalyptic number.

55064243640211 is a deficient number, since it is larger than the sum of its proper divisors (4388402100557).

55064243640211 is a wasteful number, since it uses less digits than its factorization.

55064243640211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855222.

The product of its (nonzero) digits is 691200, while the sum is 43.

Adding to 55064243640211 its reverse (11204634246055), we get a palindrome (66268877886266).

The spelling of 55064243640211 in words is "fifty-five trillion, sixty-four billion, two hundred forty-three million, six hundred forty thousand, two hundred eleven".