5521835861 has 2 divisors, whose sum is σ = 5521835862. Its totient is φ = 5521835860.

The previous prime is 5521835801. The next prime is 5521835863. The reversal of 5521835861 is 1685381255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3955655236 + 1566180625 = 62894^2 + 39575^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521835861 - 2⁶ = 5521835797 is a prime.

It is a super-2 number, since 2×5521835861² = 60981342551651222642, which contains 22 as substring.

Together with 5521835863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5521835863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760917930 + 2760917931.

It is an arithmetic number, because the mean of its divisors is an integer number (2760917931).

Almost surely, 2^5521835861 is an apocalyptic number.

It is an amenable number.

5521835861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521835861 is an equidigital number, since it uses as much as digits as its factorization.

5521835861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 44.

The square root of 5521835861 is about 74309.0563861499. The cubic root of 5521835861 is about 1767.5070889524.

The spelling of 5521835861 in words is "five billion, five hundred twenty-one million, eight hundred thirty-five thousand, eight hundred sixty-one".