19560061 has 2 divisors, whose sum is σ = 19560062. Its totient is φ = 19560060.

The previous prime is 19560059. The next prime is 19560067. The reversal of 19560061 is 16006591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 244036 = 4395^2 + 494^2 .

It is an emirp because it is prime and its reverse (16006591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19560061 - 2¹ = 19560059 is a prime.

Together with 19560059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19560067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9780030 + 9780031.

It is an arithmetic number, because the mean of its divisors is an integer number (9780031).

Almost surely, 2^19560061 is an apocalyptic number.

It is an amenable number.

19560061 is a deficient number, since it is larger than the sum of its proper divisors (1).

19560061 is an equidigital number, since it uses as much as digits as its factorization.

19560061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 19560061 is about 4422.6757737822. The cubic root of 19560061 is about 269.4366902206.

The spelling of 19560061 in words is "nineteen million, five hundred sixty thousand, sixty-one".