63216450 has 216 divisors, whose sum is σ = 198101904. Its totient is φ = 14968800.

The previous prime is 63216371. The next prime is 63216451. The reversal of 63216450 is 5461236.

It is a super-3 number, since 3×63216450³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (63216451) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1470129 + ... + 1470171.

Almost surely, 2^63216450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63216450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99050952).

63216450 is an abundant number, since it is smaller than the sum of its proper divisors (134885454).

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

63216450 is a wasteful number, since it uses less digits than its factorization.

63216450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 63216450 is about 7950.8773100835. The cubic root of 63216450 is about 398.3608966919.

Adding to 63216450 its reverse (5461236), we get a palindrome (68677686).

The spelling of 63216450 in words is "sixty-three million, two hundred sixteen thousand, four hundred fifty".