442040055265 has 4 divisors (see below), whose sum is σ = 530448066324. Its totient is φ = 353632044208.

The previous prime is 442040055239. The next prime is 442040055269. The reversal of 442040055265 is 562550040244.

It is a happy number.

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 219157868449 + 222882186816 = 468143^2 + 472104^2 .

It is a cyclic number.

It is not a de Polignac number, because 442040055265 - 2⁷ = 442040055137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442040055269) 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, 44204005522 + ... + 44204005531.

It is an arithmetic number, because the mean of its divisors is an integer number (132612016581).

Almost surely, 2^442040055265 is an apocalyptic number.

It is an amenable number.

442040055265 is a deficient number, since it is larger than the sum of its proper divisors (88408011059).

442040055265 is an equidigital number, since it uses as much as digits as its factorization.

442040055265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88408011058.

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 442040055265 in words is "four hundred forty-two billion, forty million, fifty-five thousand, two hundred sixty-five".