213053556 has 12 divisors (see below), whose sum is σ = 497124992. Its totient is φ = 71017848.

The previous prime is 213053527. The next prime is 213053557. The reversal of 213053556 is 655350312.

213053556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213053557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8877220 + ... + 8877243.

Almost surely, 2^213053556 is an apocalyptic number.

It is an amenable number.

213053556 is an abundant number, since it is smaller than the sum of its proper divisors (284071436).

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

213053556 is a wasteful number, since it uses less digits than its factorization.

213053556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17754470 (or 17754468 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 213053556 is about 14596.3542023342. The cubic root of 213053556 is about 597.2593112142.

The spelling of 213053556 in words is "two hundred thirteen million, fifty-three thousand, five hundred fifty-six".