242653504505 has 4 divisors (see below), whose sum is σ = 291184205412. Its totient is φ = 194122803600.

The previous prime is 242653504481. The next prime is 242653504523. The reversal of 242653504505 is 505405356242.

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 187509784576 + 55143719929 = 433024^2 + 234827^2 .

It is not a de Polignac number, because 242653504505 - 2¹² = 242653500409 is a prime.

It is a Duffinian 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, 24265350446 + ... + 24265350455.

It is an arithmetic number, because the mean of its divisors is an integer number (72796051353).

Almost surely, 2^242653504505 is an apocalyptic number.

It is an amenable number.

242653504505 is a deficient number, since it is larger than the sum of its proper divisors (48530700907).

242653504505 is an equidigital number, since it uses as much as digits as its factorization.

242653504505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48530700906.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 242653504505 in words is "two hundred forty-two billion, six hundred fifty-three million, five hundred four thousand, five hundred five".