55155453211 has 4 divisors (see below), whose sum is σ = 55690943152. Its totient is φ = 54619963272.

The previous prime is 55155453179. The next prime is 55155453247. The reversal of 55155453211 is 11235455155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55155453211 - 2⁵ = 55155453179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55155453911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267744816 + ... + 267745021.

It is an arithmetic number, because the mean of its divisors is an integer number (13922735788).

Almost surely, 2^55155453211 is an apocalyptic number.

55155453211 is a deficient number, since it is larger than the sum of its proper divisors (535489941).

55155453211 is a wasteful number, since it uses less digits than its factorization.

55155453211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535489940.

The product of its digits is 75000, while the sum is 37.

The spelling of 55155453211 in words is "fifty-five billion, one hundred fifty-five million, four hundred fifty-three thousand, two hundred eleven".