63522017 has 8 divisors (see below), whose sum is σ = 68655720. Its totient is φ = 58423680.

The previous prime is 63521993. The next prime is 63522029. The reversal of 63522017 is 71022536.

It can be written as a sum of positive squares in 4 ways, for example, as 7706176 + 55815841 = 2776^2 + 7471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63522017 - 2¹² = 63517921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63522077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5042 + ... + 12347.

It is an arithmetic number, because the mean of its divisors is an integer number (8581965).

Almost surely, 2^63522017 is an apocalyptic number.

It is an amenable number.

63522017 is a deficient number, since it is larger than the sum of its proper divisors (5133703).

63522017 is a wasteful number, since it uses less digits than its factorization.

63522017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17683.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 63522017 is about 7970.0700749742. The cubic root of 63522017 is about 399.0017127122.

The spelling of 63522017 in words is "sixty-three million, five hundred twenty-two thousand, seventeen".