63125550 has 72 divisors (see below), whose sum is σ = 170904240. Its totient is φ = 16704000.

The previous prime is 63125549. The next prime is 63125561. The reversal of 63125550 is 5552136.

63125550 is a `hidden beast` number, since 631 + 25 + 5 + 5 + 0 = 666.

63125550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 67486 + ... + 68414.

It is an arithmetic number, because the mean of its divisors is an integer number (2373670).

Almost surely, 2^63125550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63125550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85452120).

63125550 is an abundant number, since it is smaller than the sum of its proper divisors (107778690).

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

63125550 is a wasteful number, since it uses less digits than its factorization.

63125550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 63125550 is about 7945.1589033826. The cubic root of 63125550 is about 398.1698684837.

Adding to 63125550 its reverse (5552136), we get a palindrome (68677686).

The spelling of 63125550 in words is "sixty-three million, one hundred twenty-five thousand, five hundred fifty".