8850055561 has 2 divisors, whose sum is σ = 8850055562. Its totient is φ = 8850055560.

The previous prime is 8850055549. The next prime is 8850055573. The reversal of 8850055561 is 1655500588.

It is a balanced prime because it is at equal distance from previous prime (8850055549) and next prime (8850055573).

It can be written as a sum of positive squares in only one way, i.e., 8827729936 + 22325625 = 93956^2 + 4725^2 .

It is a cyclic number.

It is not a de Polignac number, because 8850055561 - 2⁷ = 8850055433 is a prime.

It is a super-3 number, since 3×8850055561³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8850055531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4425027780 + 4425027781.

It is an arithmetic number, because the mean of its divisors is an integer number (4425027781).

Almost surely, 2^8850055561 is an apocalyptic number.

8850055561 is the 42072-nd centered decagonal number.

It is an amenable number.

8850055561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8850055561 is an equidigital number, since it uses as much as digits as its factorization.

8850055561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240000, while the sum is 43.

The square root of 8850055561 is about 94074.7339140537. The cubic root of 8850055561 is about 2068.4673292115.

The spelling of 8850055561 in words is "eight billion, eight hundred fifty million, fifty-five thousand, five hundred sixty-one".