242064511253 has 4 divisors (see below), whose sum is σ = 242080328160. Its totient is φ = 242048694348.

The previous prime is 242064511243. The next prime is 242064511259. The reversal of 242064511253 is 352115460242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242064511253 - 2²⁸ = 241796075797 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 (242064511259) 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, 7885475 + ... + 7916112.

It is an arithmetic number, because the mean of its divisors is an integer number (60520082040).

Almost surely, 2^242064511253 is an apocalyptic number.

It is an amenable number.

242064511253 is a deficient number, since it is larger than the sum of its proper divisors (15816907).

242064511253 is a wasteful number, since it uses less digits than its factorization.

242064511253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816906.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 242064511253 its reverse (352115460242), we get a palindrome (594179971495).

The spelling of 242064511253 in words is "two hundred forty-two billion, sixty-four million, five hundred eleven thousand, two hundred fifty-three".