212054550 has 48 divisors (see below), whose sum is σ = 531140112. Its totient is φ = 55984000.

The previous prime is 212054527. The next prime is 212054569. The reversal of 212054550 is 55450212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212054550.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8152 + ... + 22148.

It is an arithmetic number, because the mean of its divisors is an integer number (11065419).

Almost surely, 2^212054550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212054550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265570056).

212054550 is an abundant number, since it is smaller than the sum of its proper divisors (319085562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212054550 is a wasteful number, since it uses less digits than its factorization.

212054550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14113 (or 14108 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 212054550 is about 14562.0929127650. The cubic root of 212054550 is about 596.3243340030.

The spelling of 212054550 in words is "two hundred twelve million, fifty-four thousand, five hundred fifty".