213250656 has 96 divisors (see below), whose sum is σ = 577317888. Its totient is φ = 68889600.

The previous prime is 213250651. The next prime is 213250673. The reversal of 213250656 is 656052312.

213250656 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 (96).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213250651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681156 + ... + 681468.

It is an arithmetic number, because the mean of its divisors is an integer number (6013728).

Almost surely, 2^213250656 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 213250656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288658944).

213250656 is an abundant number, since it is smaller than the sum of its proper divisors (364067232).

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

213250656 is a wasteful number, since it uses less digits than its factorization.

213250656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 213250656 is about 14603.1043275052. The cubic root of 213250656 is about 597.4434331934.

The spelling of 213250656 in words is "two hundred thirteen million, two hundred fifty thousand, six hundred fifty-six".