442620526253 has 2 divisors, whose sum is σ = 442620526254. Its totient is φ = 442620526252.

The previous prime is 442620526219. The next prime is 442620526279. The reversal of 442620526253 is 352625026244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442614775849 + 5750404 = 665293^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 442620526253 - 2⁶ = 442620526189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442620526253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442620526853) 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 as a sum of consecutive naturals, namely, 221310263126 + 221310263127.

It is an arithmetic number, because the mean of its divisors is an integer number (221310263127).

Almost surely, 2^442620526253 is an apocalyptic number.

It is an amenable number.

442620526253 is a deficient number, since it is larger than the sum of its proper divisors (1).

442620526253 is an equidigital number, since it uses as much as digits as its factorization.

442620526253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 442620526253 in words is "four hundred forty-two billion, six hundred twenty million, five hundred twenty-six thousand, two hundred fifty-three".