63520522 has 8 divisors (see below), whose sum is σ = 102610116. Its totient is φ = 29317152.

The previous prime is 63520493. The next prime is 63520529. The reversal of 63520522 is 22502536.

It can be written as a sum of positive squares in 2 ways, for example, as 63059481 + 461041 = 7941^2 + 679^2 .

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

It is not an unprimeable number, because it can be changed into a prime (63520529) 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, 1221523 + ... + 1221574.

Almost surely, 2^63520522 is an apocalyptic number.

63520522 is a deficient number, since it is larger than the sum of its proper divisors (39089594).

63520522 is a wasteful number, since it uses less digits than its factorization.

63520522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443112.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 63520522 is about 7969.9762860375. The cubic root of 63520522 is about 398.9985824997.

The spelling of 63520522 in words is "sixty-three million, five hundred twenty thousand, five hundred twenty-two".