61888571 has 2 divisors, whose sum is σ = 61888572. Its totient is φ = 61888570.

The previous prime is 61888549. The next prime is 61888573. The reversal of 61888571 is 17588816.

61888571 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 61888571 - 2¹⁰ = 61887547 is a prime.

Together with 61888573, 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 (61888573) 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, 30944285 + 30944286.

It is an arithmetic number, because the mean of its divisors is an integer number (30944286).

Almost surely, 2^61888571 is an apocalyptic number.

61888571 is a deficient number, since it is larger than the sum of its proper divisors (1).

61888571 is an equidigital number, since it uses as much as digits as its factorization.

61888571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 44.

The square root of 61888571 is about 7866.9289433679. The cubic root of 61888571 is about 395.5519091524.

The spelling of 61888571 in words is "sixty-one million, eight hundred eighty-eight thousand, five hundred seventy-one".