215468253 has 48 divisors (see below), whose sum is σ = 417895296. Its totient is φ = 103317120.

The previous prime is 215468237. The next prime is 215468263. The reversal of 215468253 is 352864512.

It is not a de Polignac number, because 215468253 - 2⁴ = 215468237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215468203) 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 47 ways as a sum of consecutive naturals, for example, 2950 + ... + 20967.

It is an arithmetic number, because the mean of its divisors is an integer number (8706152).

Almost surely, 2^215468253 is an apocalyptic number.

It is an amenable number.

215468253 is a deficient number, since it is larger than the sum of its proper divisors (202427043).

215468253 is a wasteful number, since it uses less digits than its factorization.

215468253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23954 (or 23951 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 215468253 is about 14678.8369089652. The cubic root of 215468253 is about 599.5072370853.

It can be divided in two parts, 2154 and 68253, that added together give a palindrome (70407).

The spelling of 215468253 in words is "two hundred fifteen million, four hundred sixty-eight thousand, two hundred fifty-three".