63540212 has 6 divisors (see below), whose sum is σ = 111195378. Its totient is φ = 31770104.

The previous prime is 63540209. The next prime is 63540229. The reversal of 63540212 is 21204536.

It can be written as a sum of positive squares in only one way, i.e., 50608996 + 12931216 = 7114^2 + 3596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7942523 + ... + 7942530.

It is an arithmetic number, because the mean of its divisors is an integer number (18532563).

Almost surely, 2^63540212 is an apocalyptic number.

It is an amenable number.

63540212 is a deficient number, since it is larger than the sum of its proper divisors (47655166).

63540212 is a wasteful number, since it uses less digits than its factorization.

63540212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15885057 (or 15885055 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 63540212 is about 7971.2114512162. The cubic root of 63540212 is about 399.0398052427.

Adding to 63540212 its reverse (21204536), we get a palindrome (84744748).

The spelling of 63540212 in words is "sixty-three million, five hundred forty thousand, two hundred twelve".