211448529550 has 12 divisors (see below), whose sum is σ = 393294265056. Its totient is φ = 84579411800.

The previous prime is 211448529499. The next prime is 211448529581. The reversal of 211448529550 is 55925844112.

It is a happy number.

211448529550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211448529550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2114485246 + ... + 2114485345.

It is an arithmetic number, because the mean of its divisors is an integer number (32774522088).

Almost surely, 2^211448529550 is an apocalyptic number.

211448529550 is a deficient number, since it is larger than the sum of its proper divisors (181845735506).

211448529550 is a wasteful number, since it uses less digits than its factorization.

211448529550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228970603 (or 4228970598 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 211448529550 in words is "two hundred eleven billion, four hundred forty-eight million, five hundred twenty-nine thousand, five hundred fifty".