125550216 has 128 divisors (see below), whose sum is σ = 388022400. Its totient is φ = 37290240.

The previous prime is 125550209. The next prime is 125550259. The reversal of 125550216 is 612055521.

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

It is a self number, because there is not a number n which added to its sum of digits gives 125550216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125430 + ... + 126426.

It is an arithmetic number, because the mean of its divisors is an integer number (3031425).

Almost surely, 2^125550216 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 125550216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194011200).

125550216 is an abundant number, since it is smaller than the sum of its proper divisors (262472184).

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

125550216 is a wasteful number, since it uses less digits than its factorization.

125550216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 125550216 is about 11204.9192768177. The cubic root of 125550216 is about 500.7325475573.

The spelling of 125550216 in words is "one hundred twenty-five million, five hundred fifty thousand, two hundred sixteen".