253201242215 has 4 divisors (see below), whose sum is σ = 303841490664. Its totient is φ = 202560993768.

The previous prime is 253201242179. The next prime is 253201242227. The reversal of 253201242215 is 512242102352.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253201242215 is a prime.

It is a super-2 number, since 2×253201242215² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25320124217 + ... + 25320124226.

It is an arithmetic number, because the mean of its divisors is an integer number (75960372666).

Almost surely, 2^253201242215 is an apocalyptic number.

253201242215 is a deficient number, since it is larger than the sum of its proper divisors (50640248449).

253201242215 is an equidigital number, since it uses as much as digits as its factorization.

253201242215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50640248448.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 253201242215 its reverse (512242102352), we get a palindrome (765443344567).

The spelling of 253201242215 in words is "two hundred fifty-three billion, two hundred one million, two hundred forty-two thousand, two hundred fifteen".