63201571 has 4 divisors (see below), whose sum is σ = 63567072. Its totient is φ = 62836072.

The previous prime is 63201559. The next prime is 63201577. The reversal of 63201571 is 17510236.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63201571 - 2⁹ = 63201059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63201577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182491 + ... + 182836.

It is an arithmetic number, because the mean of its divisors is an integer number (15891768).

Almost surely, 2^63201571 is an apocalyptic number.

63201571 is a deficient number, since it is larger than the sum of its proper divisors (365501).

63201571 is a wasteful number, since it uses less digits than its factorization.

63201571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365500.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 63201571 is about 7949.9415721123. The cubic root of 63201571 is about 398.3296407089.

The spelling of 63201571 in words is "sixty-three million, two hundred one thousand, five hundred seventy-one".