5517447155 has 32 divisors (see below), whose sum is σ = 7655041728. Its totient is φ = 3773030400.

The previous prime is 5517447139. The next prime is 5517447157.

5517447155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5517447155 - 2⁴ = 5517447139 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5517447157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1289099 + ... + 1293371.

It is an arithmetic number, because the mean of its divisors is an integer number (239220054).

Almost surely, 2^5517447155 is an apocalyptic number.

5517447155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5517447155 is a deficient number, since it is larger than the sum of its proper divisors (2137594573).

5517447155 is a wasteful number, since it uses less digits than its factorization.

5517447155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5687.

The product of its digits is 490000, while the sum is 44.

The square root of 5517447155 is about 74279.5204279080. The cubic root of 5517447155 is about 1767.0386985383.

The spelling of 5517447155 in words is "five billion, five hundred seventeen million, four hundred forty-seven thousand, one hundred fifty-five".