5558394445 has 4 divisors (see below), whose sum is σ = 6670073340. Its totient is φ = 4446715552.

The previous prime is 5558394427. The next prime is 5558394493. The reversal of 5558394445 is 5444938555.

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 727866441 + 4830528004 = 26979^2 + 69502^2 .

It is a cyclic number.

It is not a de Polignac number, because 5558394445 - 2²³ = 5550005837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5558394392 and 5558394401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555839440 + ... + 555839449.

It is an arithmetic number, because the mean of its divisors is an integer number (1667518335).

Almost surely, 2^5558394445 is an apocalyptic number.

It is an amenable number.

5558394445 is a deficient number, since it is larger than the sum of its proper divisors (1111678895).

5558394445 is a wasteful number, since it uses less digits than its factorization.

5558394445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111678894.

The product of its digits is 8640000, while the sum is 52.

The square root of 5558394445 is about 74554.6406670973. The cubic root of 5558394445 is about 1771.3992409528.

The spelling of 5558394445 in words is "five billion, five hundred fifty-eight million, three hundred ninety-four thousand, four hundred forty-five".