215055315253 has 16 divisors (see below), whose sum is σ = 218928726016. Its totient is φ = 211226641920.

The previous prime is 215055315239. The next prime is 215055315263. The reversal of 215055315253 is 352513550512.

It is a cyclic number.

It is not a de Polignac number, because 215055315253 - 2¹⁷ = 215055184181 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 (215055315263) 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 15 ways as a sum of consecutive naturals, for example, 5105125 + ... + 5147077.

It is an arithmetic number, because the mean of its divisors is an integer number (13683045376).

Almost surely, 2^215055315253 is an apocalyptic number.

It is an amenable number.

215055315253 is a deficient number, since it is larger than the sum of its proper divisors (3873410763).

215055315253 is a wasteful number, since it uses less digits than its factorization.

215055315253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42484.

The product of its (nonzero) digits is 112500, while the sum is 37.

Adding to 215055315253 its reverse (352513550512), we get a palindrome (567568865765).

The spelling of 215055315253 in words is "two hundred fifteen billion, fifty-five million, three hundred fifteen thousand, two hundred fifty-three".