215230550153 has 4 divisors (see below), whose sum is σ = 215236211988. Its totient is φ = 215224888320.

The previous prime is 215230550113. The next prime is 215230550159. The reversal of 215230550153 is 351055032512.

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

It can be written as a sum of positive squares in 2 ways, for example, as 103228549264 + 112002000889 = 321292^2 + 334667^2 .

It is a cyclic number.

It is not a de Polignac number, because 215230550153 - 2¹² = 215230546057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215230550159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2773508 + ... + 2850053.

It is an arithmetic number, because the mean of its divisors is an integer number (53809052997).

Almost surely, 2^215230550153 is an apocalyptic number.

It is an amenable number.

215230550153 is a deficient number, since it is larger than the sum of its proper divisors (5661835).

215230550153 is an equidigital number, since it uses as much as digits as its factorization.

215230550153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661834.

The product of its (nonzero) digits is 22500, while the sum is 32.

Adding to 215230550153 its reverse (351055032512), we get a palindrome (566285582665).

The spelling of 215230550153 in words is "two hundred fifteen billion, two hundred thirty million, five hundred fifty thousand, one hundred fifty-three".