5511245305 has 4 divisors (see below), whose sum is σ = 6613494372. Its totient is φ = 4408996240.

The previous prime is 5511245291. The next prime is 5511245309. The reversal of 5511245305 is 5035421155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2380171369 + 3131073936 = 48787^2 + 55956^2 .

It is not a de Polignac number, because 5511245305 - 2¹⁷ = 5511114233 is a prime.

It is a Smith number, since the sum of its digits (31) 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 (5511245309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551124526 + ... + 551124535.

It is an arithmetic number, because the mean of its divisors is an integer number (1653373593).

Almost surely, 2^5511245305 is an apocalyptic number.

It is an amenable number.

5511245305 is a deficient number, since it is larger than the sum of its proper divisors (1102249067).

5511245305 is a wasteful number, since it uses less digits than its factorization.

5511245305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102249066.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 5511245305 is about 74237.7619880880. The cubic root of 5511245305 is about 1766.3763742600.

The spelling of 5511245305 in words is "five billion, five hundred eleven million, two hundred forty-five thousand, three hundred five".