212946552 has 144 divisors (see below), whose sum is σ = 722652840. Its totient is φ = 56149632.

The previous prime is 212946551. The next prime is 212946571. The reversal of 212946552 is 255649212.

212946552 is a `hidden beast` number, since 2 + 12 + 94 + 6 + 552 = 666.

212946552 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212946551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43543 + ... + 48185.

Almost surely, 2^212946552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212946552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361326420).

212946552 is an abundant number, since it is smaller than the sum of its proper divisors (509706288).

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

212946552 is a wasteful number, since it uses less digits than its factorization.

212946552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682 (or 4668 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 212946552 is about 14592.6883061347. The cubic root of 212946552 is about 597.1593053146.

The spelling of 212946552 in words is "two hundred twelve million, nine hundred forty-six thousand, five hundred fifty-two".