63571223 has 4 divisors (see below), whose sum is σ = 63801000. Its totient is φ = 63341448.

The previous prime is 63571171. The next prime is 63571229. The reversal of 63571223 is 32217536.

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 63571223 - 2⁶ = 63571159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63571229) 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, 114473 + ... + 115026.

It is an arithmetic number, because the mean of its divisors is an integer number (15950250).

Almost surely, 2^63571223 is an apocalyptic number.

63571223 is a deficient number, since it is larger than the sum of its proper divisors (229777).

63571223 is a wasteful number, since it uses less digits than its factorization.

63571223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229776.

The product of its digits is 7560, while the sum is 29.

The square root of 63571223 is about 7973.1564013256. The cubic root of 63571223 is about 399.1047122279.

Adding to 63571223 its reverse (32217536), we get a palindrome (95788759).

The spelling of 63571223 in words is "sixty-three million, five hundred seventy-one thousand, two hundred twenty-three".