61606005 has 16 divisors (see below), whose sum is σ = 101969280. Its totient is φ = 31723328.

The previous prime is 61606001. The next prime is 61606007. The reversal of 61606005 is 50060616.

It is a cyclic number.

It is not a de Polignac number, because 61606005 - 2² = 61606001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61606001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70377 + ... + 71246.

It is an arithmetic number, because the mean of its divisors is an integer number (6373080).

Almost surely, 2^61606005 is an apocalyptic number.

It is an amenable number.

61606005 is a deficient number, since it is larger than the sum of its proper divisors (40363275).

61606005 is a wasteful number, since it uses less digits than its factorization.

61606005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141660.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61606005 is about 7848.9492927398. The cubic root of 61606005 is about 394.9489973137.

The spelling of 61606005 in words is "sixty-one million, six hundred six thousand, five".