63220516 has 12 divisors (see below), whose sum is σ = 110935132. Its totient is φ = 31524768.

The previous prime is 63220513. The next prime is 63220523. The reversal of 63220516 is 61502236.

It can be written as a sum of positive squares in 2 ways, for example, as 16434916 + 46785600 = 4054^2 + 6840^2 .

It is not an unprimeable number, because it can be changed into a prime (63220511) 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, 19695 + ... + 22678.

Almost surely, 2^63220516 is an apocalyptic number.

It is an amenable number.

63220516 is a deficient number, since it is larger than the sum of its proper divisors (47714616).

63220516 is a wasteful number, since it uses less digits than its factorization.

63220516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42750 (or 42748 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 63220516 is about 7951.1330010257. The cubic root of 63220516 is about 398.3694371941.

It can be divided in two parts, 63220 and 516, that added together give a palindrome (63736).

The spelling of 63220516 in words is "sixty-three million, two hundred twenty thousand, five hundred sixteen".