211385050 has 12 divisors (see below), whose sum is σ = 393176286. Its totient is φ = 84554000.

The previous prime is 211385047. The next prime is 211385059. The reversal of 211385050 is 50583112.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 90231001 + 121154049 = 9499^2 + 11007^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (211385059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2113801 + ... + 2113900.

Almost surely, 2^211385050 is an apocalyptic number.

211385050 is a deficient number, since it is larger than the sum of its proper divisors (181791236).

211385050 is a wasteful number, since it uses less digits than its factorization.

211385050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227713 (or 4227708 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 211385050 is about 14539.0869727091. The cubic root of 211385050 is about 595.6960993651.

The spelling of 211385050 in words is "two hundred eleven million, three hundred eighty-five thousand, fifty".