211342055 has 16 divisors (see below), whose sum is σ = 265291200. Its totient is φ = 161323008.

The previous prime is 211342049. The next prime is 211342057. The reversal of 211342055 is 550243112.

It is a cyclic number.

It is not a de Polignac number, because 211342055 - 2¹⁴ = 211325671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 211342055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211342057) 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, 49589 + ... + 53681.

It is an arithmetic number, because the mean of its divisors is an integer number (16580700).

Almost surely, 2^211342055 is an apocalyptic number.

211342055 is a deficient number, since it is larger than the sum of its proper divisors (53949145).

211342055 is a wasteful number, since it uses less digits than its factorization.

211342055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4570.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 211342055 is about 14537.6082971031. The cubic root of 211342055 is about 595.6557091066.

Adding to 211342055 its reverse (550243112), we get a palindrome (761585167).

The spelling of 211342055 in words is "two hundred eleven million, three hundred forty-two thousand, fifty-five".