63205071 has 4 divisors (see below), whose sum is σ = 84273432. Its totient is φ = 42136712.

The previous prime is 63205057. The next prime is 63205111. The reversal of 63205071 is 17050236.

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 63205071 - 2¹⁴ = 63188687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63205171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10534176 + ... + 10534181.

It is an arithmetic number, because the mean of its divisors is an integer number (21068358).

Almost surely, 2^63205071 is an apocalyptic number.

63205071 is a deficient number, since it is larger than the sum of its proper divisors (21068361).

63205071 is a wasteful number, since it uses less digits than its factorization.

63205071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21068360.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 63205071 is about 7950.1616964688. The cubic root of 63205071 is about 398.3369935220.

The spelling of 63205071 in words is "sixty-three million, two hundred five thousand, seventy-one".