5515145227 has 2 divisors, whose sum is σ = 5515145228. Its totient is φ = 5515145226.

The previous prime is 5515145221. The next prime is 5515145263. The reversal of 5515145227 is 7225415155.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5515145227 is a prime.

It is not a weakly prime, because it can be changed into another prime (5515145221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2757572613 + 2757572614.

It is an arithmetic number, because the mean of its divisors is an integer number (2757572614).

Almost surely, 2^5515145227 is an apocalyptic number.

5515145227 is a deficient number, since it is larger than the sum of its proper divisors (1).

5515145227 is an equidigital number, since it uses as much as digits as its factorization.

5515145227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70000, while the sum is 37.

The square root of 5515145227 is about 74264.0237732915. The cubic root of 5515145227 is about 1766.7929229375.

The spelling of 5515145227 in words is "five billion, five hundred fifteen million, one hundred forty-five thousand, two hundred twenty-seven".