442212550551 has 8 divisors (see below), whose sum is σ = 655129704560. Its totient is φ = 294808367016.

The previous prime is 442212550547. The next prime is 442212550561. The reversal of 442212550551 is 155055212244.

442212550551 is a `hidden beast` number, since 4 + 4 + 22 + 125 + 505 + 5 + 1 = 666.

It is not a de Polignac number, because 442212550551 - 2² = 442212550547 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 (442212550511) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8189121280 + ... + 8189121333.

It is an arithmetic number, because the mean of its divisors is an integer number (81891213070).

Almost surely, 2^442212550551 is an apocalyptic number.

442212550551 is a deficient number, since it is larger than the sum of its proper divisors (212917154009).

442212550551 is a wasteful number, since it uses less digits than its factorization.

442212550551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16378242622 (or 16378242616 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

Adding to 442212550551 its reverse (155055212244), we get a palindrome (597267762795).

The spelling of 442212550551 in words is "four hundred forty-two billion, two hundred twelve million, five hundred fifty thousand, five hundred fifty-one".