63121752 has 96 divisors (see below), whose sum is σ = 182407680. Its totient is φ = 19673280.

The previous prime is 63121733. The next prime is 63121753. The reversal of 63121752 is 25712136.

It is a happy number.

63121752 is a `hidden beast` number, since 631 + 21 + 7 + 5 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63121753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77427 + ... + 78237.

It is an arithmetic number, because the mean of its divisors is an integer number (1900080).

Almost surely, 2^63121752 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 63121752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91203840).

63121752 is an abundant number, since it is smaller than the sum of its proper divisors (119285928).

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

63121752 is a wasteful number, since it uses less digits than its factorization.

63121752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 886 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 63121752 is about 7944.9198863173. The cubic root of 63121752 is about 398.1618829190.

Adding to 63121752 its reverse (25712136), we get a palindrome (88833888).

The spelling of 63121752 in words is "sixty-three million, one hundred twenty-one thousand, seven hundred fifty-two".