215360056 has 8 divisors (see below), whose sum is σ = 403800120. Its totient is φ = 107680024.

The previous prime is 215360051. The next prime is 215360071. The reversal of 215360056 is 650063512.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) 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 (215360051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13459996 + ... + 13460011.

It is an arithmetic number, because the mean of its divisors is an integer number (50475015).

Almost surely, 2^215360056 is an apocalyptic number.

It is an amenable number.

215360056 is a deficient number, since it is larger than the sum of its proper divisors (188440064).

215360056 is a wasteful number, since it uses less digits than its factorization.

215360056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26920013 (or 26920009 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 215360056 is about 14675.1509702626. The cubic root of 215360056 is about 599.4068731200.

The spelling of 215360056 in words is "two hundred fifteen million, three hundred sixty thousand, fifty-six".