125117056 has 32 divisors (see below), whose sum is σ = 260100000. Its totient is φ = 59837184.

The previous prime is 125117053. The next prime is 125117063. The reversal of 125117056 is 650711521.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (125117051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18306 + ... + 24193.

It is an arithmetic number, because the mean of its divisors is an integer number (8128125).

Almost surely, 2^125117056 is an apocalyptic number.

125117056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125117056 is an abundant number, since it is smaller than the sum of its proper divisors (134982944).

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

125117056 is an equidigital number, since it uses as much as digits as its factorization.

125117056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42536 (or 42524 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 125117056 is about 11185.5735659822. The cubic root of 125117056 is about 500.1560259734.

Adding to 125117056 its reverse (650711521), we get a palindrome (775828577).

The spelling of 125117056 in words is "one hundred twenty-five million, one hundred seventeen thousand, fifty-six".