63572420 has 24 divisors (see below), whose sum is σ = 133780248. Its totient is φ = 25376000.

The previous prime is 63572417. The next prime is 63572459. The reversal of 63572420 is 2427536.

It can be written as a sum of positive squares in 4 ways, for example, as 4804864 + 58767556 = 2192^2 + 7666^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7370 + ... + 13470.

It is an arithmetic number, because the mean of its divisors is an integer number (5574177).

Almost surely, 2^63572420 is an apocalyptic number.

It is an amenable number.

63572420 is an abundant number, since it is smaller than the sum of its proper divisors (70207828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63572420 is a wasteful number, since it uses less digits than its factorization.

63572420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631 (or 6629 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 63572420 is about 7973.2314653470. The cubic root of 63572420 is about 399.1072171629.

Adding to 63572420 its reverse (2427536), we get a palindrome (65999956).

The spelling of 63572420 in words is "sixty-three million, five hundred seventy-two thousand, four hundred twenty".