61675261 has 2 divisors, whose sum is σ = 61675262. Its totient is φ = 61675260.

The previous prime is 61675247. The next prime is 61675277. The reversal of 61675261 is 16257616.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50851161 + 10824100 = 7131^2 + 3290^2 .

It is a cyclic number.

It is not a de Polignac number, because 61675261 - 2⁹ = 61674749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61675231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30837630 + 30837631.

It is an arithmetic number, because the mean of its divisors is an integer number (30837631).

Almost surely, 2^61675261 is an apocalyptic number.

It is an amenable number.

61675261 is a deficient number, since it is larger than the sum of its proper divisors (1).

61675261 is an equidigital number, since it uses as much as digits as its factorization.

61675261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 61675261 is about 7853.3598542280. The cubic root of 61675261 is about 395.0969393011.

The spelling of 61675261 in words is "sixty-one million, six hundred seventy-five thousand, two hundred sixty-one".