215673056 has 12 divisors (see below), whose sum is σ = 424606392. Its totient is φ = 107836512.

The previous prime is 215673053. The next prime is 215673071. The reversal of 215673056 is 650376512.

215673056 is digitally balanced in base 2, 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 (215673053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3369860 + ... + 3369923.

It is an arithmetic number, because the mean of its divisors is an integer number (35383866).

Almost surely, 2^215673056 is an apocalyptic number.

It is an amenable number.

215673056 is a deficient number, since it is larger than the sum of its proper divisors (208933336).

215673056 is an equidigital number, since it uses as much as digits as its factorization.

215673056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739793 (or 6739785 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 215673056 is about 14685.8113837813. The cubic root of 215673056 is about 599.6971212072.

The spelling of 215673056 in words is "two hundred fifteen million, six hundred seventy-three thousand, fifty-six".