5661055061 has 2 divisors, whose sum is σ = 5661055062. Its totient is φ = 5661055060.

The previous prime is 5661055003. The next prime is 5661055069. The reversal of 5661055061 is 1605501665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3545607025 + 2115448036 = 59545^2 + 45994^2 .

It is a cyclic number.

It is not a de Polignac number, because 5661055061 - 2¹⁰ = 5661054037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5661055069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830527530 + 2830527531.

It is an arithmetic number, because the mean of its divisors is an integer number (2830527531).

Almost surely, 2^5661055061 is an apocalyptic number.

It is an amenable number.

5661055061 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661055061 is an equidigital number, since it uses as much as digits as its factorization.

5661055061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 5661055061 is about 75239.9831273240. The cubic root of 5661055061 is about 1782.2383847189.

The spelling of 5661055061 in words is "five billion, six hundred sixty-one million, fifty-five thousand, sixty-one".