212053950 has 144 divisors (see below), whose sum is σ = 610960896. Its totient is φ = 54626400.

The previous prime is 212053949. The next prime is 212053967. The reversal of 212053950 is 59350212.

212053950 is a `hidden beast` number, since 2 + 120 + 539 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 376369 + ... + 376931.

It is an arithmetic number, because the mean of its divisors is an integer number (4242784).

Almost surely, 2^212053950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212053950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305480448).

212053950 is an abundant number, since it is smaller than the sum of its proper divisors (398906946).

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

212053950 is a wasteful number, since it uses less digits than its factorization.

212053950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 212053950 is about 14562.0723113161. The cubic root of 212053950 is about 596.3237715770.

The spelling of 212053950 in words is "two hundred twelve million, fifty-three thousand, nine hundred fifty".