61006571 has 2 divisors, whose sum is σ = 61006572. Its totient is φ = 61006570.

The previous prime is 61006559. The next prime is 61006579. The reversal of 61006571 is 17560016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61006571 - 2¹⁸ = 60744427 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61006571.

It is not a weakly prime, because it can be changed into another prime (61006579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30503285 + 30503286.

It is an arithmetic number, because the mean of its divisors is an integer number (30503286).

Almost surely, 2^61006571 is an apocalyptic number.

61006571 is a deficient number, since it is larger than the sum of its proper divisors (1).

61006571 is an equidigital number, since it uses as much as digits as its factorization.

61006571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 61006571 is about 7810.6703297476. The cubic root of 61006571 is about 393.6638526240.

Adding to 61006571 its reverse (17560016), we get a palindrome (78566587).

The spelling of 61006571 in words is "sixty-one million, six thousand, five hundred seventy-one".