211585030 has 16 divisors (see below), whose sum is σ = 381098160. Its totient is φ = 84579552.

The previous prime is 211585021. The next prime is 211585037. The reversal of 211585030 is 30585112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211584986 and 211585004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211585037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11977 + ... + 23803.

It is an arithmetic number, because the mean of its divisors is an integer number (23818635).

Almost surely, 2^211585030 is an apocalyptic number.

211585030 is a deficient number, since it is larger than the sum of its proper divisors (169513130).

211585030 is a wasteful number, since it uses less digits than its factorization.

211585030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13623.

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

The square root of 211585030 is about 14545.9626701020. The cubic root of 211585030 is about 595.8838921459.

The spelling of 211585030 in words is "two hundred eleven million, five hundred eighty-five thousand, thirty".