63821152 has 48 divisors (see below), whose sum is σ = 135883440. Its totient is φ = 29403648.

The previous prime is 63821137. The next prime is 63821161. The reversal of 63821152 is 25112836.

It is a self number, because there is not a number n which added to its sum of digits gives 63821152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21078 + ... + 23914.

It is an arithmetic number, because the mean of its divisors is an integer number (2830905).

Almost surely, 2^63821152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63821152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67941720).

63821152 is an abundant number, since it is smaller than the sum of its proper divisors (72062288).

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

63821152 is a wasteful number, since it uses less digits than its factorization.

63821152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2895 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 63821152 is about 7988.8141798392. The cubic root of 63821152 is about 399.6270523833.

Adding to 63821152 its reverse (25112836), we get a palindrome (88933988).

The spelling of 63821152 in words is "sixty-three million, eight hundred twenty-one thousand, one hundred fifty-two".