5601000061 has 2 divisors, whose sum is σ = 5601000062. Its totient is φ = 5601000060.

The previous prime is 5601000049. The next prime is 5601000073. The reversal of 5601000061 is 1600001065.

It is a balanced prime because it is at equal distance from previous prime (5601000049) and next prime (5601000073).

It can be written as a sum of positive squares in only one way, i.e., 4930707961 + 670292100 = 70219^2 + 25890^2 .

It is a cyclic number.

It is not a de Polignac number, because 5601000061 - 2²¹ = 5598902909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5601000001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2800500030 + 2800500031.

It is an arithmetic number, because the mean of its divisors is an integer number (2800500031).

Almost surely, 2^5601000061 is an apocalyptic number.

It is an amenable number.

5601000061 is a deficient number, since it is larger than the sum of its proper divisors (1).

5601000061 is an equidigital number, since it uses as much as digits as its factorization.

5601000061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 5601000061 is about 74839.8293758076. The cubic root of 5601000061 is about 1775.9137064984.

The spelling of 5601000061 in words is "five billion, six hundred one million, sixty-one", and thus it is an aban number.