422056505551 has 4 divisors (see below), whose sum is σ = 432350566704. Its totient is φ = 411762444400.

The previous prime is 422056505509. The next prime is 422056505557. The reversal of 422056505551 is 155505650224.

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-422056505551 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 (422056505557) 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, 5147030515 + ... + 5147030596.

It is an arithmetic number, because the mean of its divisors is an integer number (108087641676).

Almost surely, 2^422056505551 is an apocalyptic number.

422056505551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

422056505551 is a deficient number, since it is larger than the sum of its proper divisors (10294061153).

422056505551 is a wasteful number, since it uses less digits than its factorization.

422056505551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294061152.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 422056505551 in words is "four hundred twenty-two billion, fifty-six million, five hundred five thousand, five hundred fifty-one".