445324423553 has 2 divisors, whose sum is σ = 445324423554. Its totient is φ = 445324423552.

The previous prime is 445324423543. The next prime is 445324423613. The reversal of 445324423553 is 355324423544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329903194384 + 115421229169 = 574372^2 + 339737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445324423553 is a prime.

It is a super-2 number, since 2×445324423553² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (445324423543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222662211776 + 222662211777.

It is an arithmetic number, because the mean of its divisors is an integer number (222662211777).

Almost surely, 2^445324423553 is an apocalyptic number.

It is an amenable number.

445324423553 is a deficient number, since it is larger than the sum of its proper divisors (1).

445324423553 is an equidigital number, since it uses as much as digits as its factorization.

445324423553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456000, while the sum is 44.

Subtracting from 445324423553 its reverse (355324423544), we obtain a palindrome (90000000009).

The spelling of 445324423553 in words is "four hundred forty-five billion, three hundred twenty-four million, four hundred twenty-three thousand, five hundred fifty-three".