61675571 has 2 divisors, whose sum is σ = 61675572. Its totient is φ = 61675570.

The previous prime is 61675567. The next prime is 61675573. The reversal of 61675571 is 17557616.

61675571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61675571 - 2² = 61675567 is a prime.

It is a Sophie Germain prime.

Together with 61675573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61675573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30837785 + 30837786.

It is an arithmetic number, because the mean of its divisors is an integer number (30837786).

Almost surely, 2^61675571 is an apocalyptic number.

61675571 is a deficient number, since it is larger than the sum of its proper divisors (1).

61675571 is an equidigital number, since it uses as much as digits as its factorization.

61675571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 38.

The square root of 61675571 is about 7853.3795909787. The cubic root of 61675571 is about 395.0976012621.

The spelling of 61675571 in words is "sixty-one million, six hundred seventy-five thousand, five hundred seventy-one".