442124650553 has 4 divisors (see below), whose sum is σ = 442132818468. Its totient is φ = 442116482640.

The previous prime is 442124650507. The next prime is 442124650621. The reversal of 442124650553 is 355056421244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67087216144 + 375037434409 = 259012^2 + 612403^2 .

It is a cyclic number.

It is not a de Polignac number, because 442124650553 - 2³² = 437829683257 is a prime.

It is a super-2 number, since 2×442124650553² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442124650553.

It is not an unprimeable number, because it can be changed into a prime (442124659553) 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, 4002218 + ... + 4111203.

It is an arithmetic number, because the mean of its divisors is an integer number (110533204617).

Almost surely, 2^442124650553 is an apocalyptic number.

It is an amenable number.

442124650553 is a deficient number, since it is larger than the sum of its proper divisors (8167915).

442124650553 is an equidigital number, since it uses as much as digits as its factorization.

442124650553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8167914.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 442124650553 in words is "four hundred forty-two billion, one hundred twenty-four million, six hundred fifty thousand, five hundred fifty-three".