213587056 has 20 divisors (see below), whose sum is σ = 435605800. Its totient is φ = 101172672.

The previous prime is 213587053. The next prime is 213587057. The reversal of 213587056 is 650785312.

213587056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213587053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 350991 + ... + 351598.

It is an arithmetic number, because the mean of its divisors is an integer number (21780290).

Almost surely, 2^213587056 is an apocalyptic number.

It is an amenable number.

213587056 is an abundant number, since it is smaller than the sum of its proper divisors (222018744).

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

213587056 is a wasteful number, since it uses less digits than its factorization.

213587056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702616 (or 702610 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 213587056 is about 14614.6178875809. The cubic root of 213587056 is about 597.7574211019.

The spelling of 213587056 in words is "two hundred thirteen million, five hundred eighty-seven thousand, fifty-six".