5515005155 has 16 divisors (see below), whose sum is σ = 7279318368. Its totient is φ = 4010908000.

The previous prime is 5515005149. The next prime is 5515005169.

5515005155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5515005155 - 2⁶ = 5515005091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407696 + ... + 421005.

It is an arithmetic number, because the mean of its divisors is an integer number (454957398).

Almost surely, 2^5515005155 is an apocalyptic number.

5515005155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5515005155 is a deficient number, since it is larger than the sum of its proper divisors (1764313213).

5515005155 is an equidigital number, since it uses as much as digits as its factorization.

5515005155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828739 (or 828717 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 32.

The square root of 5515005155 is about 74263.0806996316. The cubic root of 5515005155 is about 1766.7779653191. Note that the first 3 decimals are identical.

It can be divided in two parts, 551500 and 5155, that added together give a palindrome (556655).

The spelling of 5515005155 in words is "five billion, five hundred fifteen million, five thousand, one hundred fifty-five".