425221065653 has 4 divisors (see below), whose sum is σ = 447601121760. Its totient is φ = 402841009548.

The previous prime is 425221065631. The next prime is 425221065679. The reversal of 425221065653 is 356560122524.

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 425221065653 - 2⁶ = 425221065589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 425221065653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425221065553) 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, 11190028025 + ... + 11190028062.

It is an arithmetic number, because the mean of its divisors is an integer number (111900280440).

Almost surely, 2^425221065653 is an apocalyptic number.

It is an amenable number.

425221065653 is a deficient number, since it is larger than the sum of its proper divisors (22380056107).

425221065653 is a wasteful number, since it uses less digits than its factorization.

425221065653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22380056106.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 425221065653 in words is "four hundred twenty-five billion, two hundred twenty-one million, sixty-five thousand, six hundred fifty-three".