5511021289 has 2 divisors, whose sum is σ = 5511021290. Its totient is φ = 5511021288.

The previous prime is 5511021287. The next prime is 5511021353. The reversal of 5511021289 is 9821201155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4581259225 + 929762064 = 67685^2 + 30492^2 .

It is a cyclic number.

It is not a de Polignac number, because 5511021289 - 2¹ = 5511021287 is a prime.

It is a super-2 number, since 2×5511021289² = 60742711295622443042, which contains 22 as substring.

Together with 5511021287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5511021287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755510644 + 2755510645.

It is an arithmetic number, because the mean of its divisors is an integer number (2755510645).

Almost surely, 2^5511021289 is an apocalyptic number.

It is an amenable number.

5511021289 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511021289 is an equidigital number, since it uses as much as digits as its factorization.

5511021289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 5511021289 is about 74236.2531988246. The cubic root of 5511021289 is about 1766.3524412582.

The spelling of 5511021289 in words is "five billion, five hundred eleven million, twenty-one thousand, two hundred eighty-nine".