442123051553 has 4 divisors (see below), whose sum is σ = 442137827328. Its totient is φ = 442108275780.

The previous prime is 442123051547. The next prime is 442123051571. The reversal of 442123051553 is 355150321244.

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 442123051553 - 2³⁸ = 167245144609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442123053553) 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, 7342913 + ... + 7402878.

It is an arithmetic number, because the mean of its divisors is an integer number (110534456832).

Almost surely, 2^442123051553 is an apocalyptic number.

It is an amenable number.

442123051553 is a deficient number, since it is larger than the sum of its proper divisors (14775775).

442123051553 is a wasteful number, since it uses less digits than its factorization.

442123051553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14775774.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 442123051553 its reverse (355150321244), we get a palindrome (797273372797).

The spelling of 442123051553 in words is "four hundred forty-two billion, one hundred twenty-three million, fifty-one thousand, five hundred fifty-three".