5445223639 has 2 divisors, whose sum is σ = 5445223640. Its totient is φ = 5445223638.

The previous prime is 5445223627. The next prime is 5445223691. The reversal of 5445223639 is 9363225445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5445223639 - 2¹⁷ = 5445092567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5445223595 and 5445223604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5445220639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722611819 + 2722611820.

It is an arithmetic number, because the mean of its divisors is an integer number (2722611820).

Almost surely, 2^5445223639 is an apocalyptic number.

5445223639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445223639 is an equidigital number, since it uses as much as digits as its factorization.

5445223639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 43.

The square root of 5445223639 is about 73791.7586116499. The cubic root of 5445223639 is about 1759.2946164991.

The spelling of 5445223639 in words is "five billion, four hundred forty-five million, two hundred twenty-three thousand, six hundred thirty-nine".