63812572 has 6 divisors (see below), whose sum is σ = 111672008. Its totient is φ = 31906284.

The previous prime is 63812563. The next prime is 63812627. The reversal of 63812572 is 27521836.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7976568 + ... + 7976575.

Almost surely, 2^63812572 is an apocalyptic number.

It is an amenable number.

63812572 is a deficient number, since it is larger than the sum of its proper divisors (47859436).

63812572 is a wasteful number, since it uses less digits than its factorization.

63812572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15953147 (or 15953145 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 63812572 is about 7988.2771609403. The cubic root of 63812572 is about 399.6091432018.

The spelling of 63812572 in words is "sixty-three million, eight hundred twelve thousand, five hundred seventy-two".