5556173945 has 24 divisors (see below), whose sum is σ = 8023422600. Its totient is φ = 3678565632.

The previous prime is 5556173939. The next prime is 5556173947. The reversal of 5556173945 is 5493716555.

It can be written as a sum of positive squares in 4 ways, for example, as 1675756096 + 3880417849 = 40936^2 + 62293^2 .

It is not a de Polignac number, because 5556173945 - 2²⁴ = 5539396729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5556173893 and 5556173902.

It is not an unprimeable number, because it can be changed into a prime (5556173947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383900 + ... + 398109.

It is an arithmetic number, because the mean of its divisors is an integer number (334309275).

Almost surely, 2^5556173945 is an apocalyptic number.

It is an amenable number.

5556173945 is a deficient number, since it is larger than the sum of its proper divisors (2467248655).

5556173945 is a wasteful number, since it uses less digits than its factorization.

5556173945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782057 (or 782050 counting only the distinct ones).

The product of its digits is 2835000, while the sum is 50.

The square root of 5556173945 is about 74539.7474170660. The cubic root of 5556173945 is about 1771.1633265505.

The spelling of 5556173945 in words is "five billion, five hundred fifty-six million, one hundred seventy-three thousand, nine hundred forty-five".