215050385 has 16 divisors (see below), whose sum is σ = 282042432. Its totient is φ = 156110400.

The previous prime is 215050373. The next prime is 215050387. The reversal of 215050385 is 583050512.

It is not a de Polignac number, because 215050385 - 2⁶ = 215050321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215050387) 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, 28955 + ... + 35615.

It is an arithmetic number, because the mean of its divisors is an integer number (17627652).

Almost surely, 2^215050385 is an apocalyptic number.

It is an amenable number.

215050385 is a deficient number, since it is larger than the sum of its proper divisors (66992047).

215050385 is a wasteful number, since it uses less digits than its factorization.

215050385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 215050385 is about 14664.5963122072. The cubic root of 215050385 is about 599.1194351600.

The spelling of 215050385 in words is "two hundred fifteen million, fifty thousand, three hundred eighty-five".