63216456 has 64 divisors (see below), whose sum is σ = 161740800. Its totient is φ = 20586048.

The previous prime is 63216451. The next prime is 63216473. The reversal of 63216456 is 65461236.

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 15 ways as a sum of consecutive naturals, for example, 264385 + ... + 264623.

It is an arithmetic number, because the mean of its divisors is an integer number (2527200).

Almost surely, 2^63216456 is an apocalyptic number.

It is an amenable number.

63216456 is an abundant number, since it is smaller than the sum of its proper divisors (98524344).

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

63216456 is a wasteful number, since it uses less digits than its factorization.

63216456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 454 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 63216456 is about 7950.8776874003. The cubic root of 63216456 is about 398.3609092950.

The spelling of 63216456 in words is "sixty-three million, two hundred sixteen thousand, four hundred fifty-six".