215053567 has 4 divisors (see below), whose sum is σ = 215225640. Its totient is φ = 214881496.

The previous prime is 215053549. The next prime is 215053613. The reversal of 215053567 is 765350512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215053567 - 2⁷ = 215053439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215053507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84148 + ... + 86665.

It is an arithmetic number, because the mean of its divisors is an integer number (53806410).

Almost surely, 2^215053567 is an apocalyptic number.

215053567 is a deficient number, since it is larger than the sum of its proper divisors (172073).

215053567 is a wasteful number, since it uses less digits than its factorization.

215053567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172072.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 215053567 is about 14664.7048043934. The cubic root of 215053567 is about 599.1223901088.

The spelling of 215053567 in words is "two hundred fifteen million, fifty-three thousand, five hundred sixty-seven".