245253604242 has 8 divisors (see below), whose sum is σ = 490507208496. Its totient is φ = 81751201412.

The previous prime is 245253604223. The next prime is 245253604247. The reversal of 245253604242 is 242406352542.

245253604242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

245253604242 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 245253604242.

It is not an unprimeable number, because it can be changed into a prime (245253604247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20437800348 + ... + 20437800359.

It is an arithmetic number, because the mean of its divisors is an integer number (61313401062).

Almost surely, 2^245253604242 is an apocalyptic number.

245253604242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245253604242 is a wasteful number, since it uses less digits than its factorization.

245253604242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40875600712.

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 245253604242 its reverse (242406352542), we get a palindrome (487659956784).

The spelling of 245253604242 in words is "two hundred forty-five billion, two hundred fifty-three million, six hundred four thousand, two hundred forty-two".