5515445155 has 16 divisors (see below), whose sum is σ = 7224596064. Its totient is φ = 4008801280.

The previous prime is 5515445141. The next prime is 5515445183.

5515445155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5515445155 - 2²⁵ = 5481890723 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, 63789 + ... + 122881.

It is an arithmetic number, because the mean of its divisors is an integer number (451537254).

Almost surely, 2^5515445155 is an apocalyptic number.

5515445155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5515445155 is a deficient number, since it is larger than the sum of its proper divisors (1709150909).

5515445155 is a wasteful number, since it uses less digits than its factorization.

5515445155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60806.

The product of its digits is 250000, while the sum is 40.

The square root of 5515445155 is about 74266.0430816130. The cubic root of 5515445155 is about 1766.8249499613.

The spelling of 5515445155 in words is "five billion, five hundred fifteen million, four hundred forty-five thousand, one hundred fifty-five".