215550448 has 40 divisors (see below), whose sum is σ = 429347520. Its totient is φ = 104770560.

The previous prime is 215550437. The next prime is 215550449. The reversal of 215550448 is 844055512.

It is a happy number.

215550448 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 (215550449) 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 7 ways as a sum of consecutive naturals, for example, 299433 + ... + 300151.

It is an arithmetic number, because the mean of its divisors is an integer number (10733688).

Almost surely, 2^215550448 is an apocalyptic number.

It is an amenable number.

215550448 is a deficient number, since it is larger than the sum of its proper divisors (213797072).

215550448 is a wasteful number, since it uses less digits than its factorization.

215550448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 215550448 is about 14681.6364210533. The cubic root of 215550448 is about 599.5834590378.

The spelling of 215550448 in words is "two hundred fifteen million, five hundred fifty thousand, four hundred forty-eight".