5556637945 has 16 divisors (see below), whose sum is σ = 6900999120. Its totient is φ = 4290092800.

The previous prime is 5556637943. The next prime is 5556637973. The reversal of 5556637945 is 5497366555.

It can be written as a sum of positive squares in 8 ways, for example, as 393784336 + 5162853609 = 19844^2 + 71853^2 .

It is not a de Polignac number, because 5556637945 - 2¹ = 5556637943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5556637943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372735 + ... + 387355.

It is an arithmetic number, because the mean of its divisors is an integer number (431312445).

Almost surely, 2^5556637945 is an apocalyptic number.

It is an amenable number.

5556637945 is a deficient number, since it is larger than the sum of its proper divisors (1344361175).

5556637945 is a wasteful number, since it uses less digits than its factorization.

5556637945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17276.

The product of its digits is 17010000, while the sum is 55.

The square root of 5556637945 is about 74542.8597854952. The cubic root of 5556637945 is about 1771.2126288771.

The spelling of 5556637945 in words is "five billion, five hundred fifty-six million, six hundred thirty-seven thousand, nine hundred forty-five".