211055954 has 12 divisors (see below), whose sum is σ = 324123246. Its totient is φ = 103072032.

The previous prime is 211055951. The next prime is 211055983. The reversal of 211055954 is 459550112.

It can be written as a sum of positive squares in only one way, i.e., 154430329 + 56625625 = 12427^2 + 7525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 211055954.

It is not an unprimeable number, because it can be changed into a prime (211055951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24839 + ... + 32234.

Almost surely, 2^211055954 is an apocalyptic number.

211055954 is a deficient number, since it is larger than the sum of its proper divisors (113067292).

211055954 is an equidigital number, since it uses as much as digits as its factorization.

211055954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57161 (or 57118 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 211055954 is about 14527.7649347723. The cubic root of 211055954 is about 595.3868011949.

The spelling of 211055954 in words is "two hundred eleven million, fifty-five thousand, nine hundred fifty-four".