63261571 has 2 divisors, whose sum is σ = 63261572. Its totient is φ = 63261570.

The previous prime is 63261563. The next prime is 63261613. The reversal of 63261571 is 17516236.

63261571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63261571 - 2³ = 63261563 is a prime.

It is not a weakly prime, because it can be changed into another prime (63261371) 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, 31630785 + 31630786.

It is an arithmetic number, because the mean of its divisors is an integer number (31630786).

Almost surely, 2^63261571 is an apocalyptic number.

63261571 is a deficient number, since it is larger than the sum of its proper divisors (1).

63261571 is an equidigital number, since it uses as much as digits as its factorization.

63261571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 63261571 is about 7953.7142895631. The cubic root of 63261571 is about 398.4556513920.

The spelling of 63261571 in words is "sixty-three million, two hundred sixty-one thousand, five hundred seventy-one".