125054512 has 40 divisors (see below), whose sum is σ = 268822080. Its totient is φ = 55874880.

The previous prime is 125054497. The next prime is 125054513. The reversal of 125054512 is 215450521.

It is not an unprimeable number, because it can be changed into a prime (125054513) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4363 + ... + 16405.

It is an arithmetic number, because the mean of its divisors is an integer number (6720552).

Almost surely, 2^125054512 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 125054512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134411040).

125054512 is an abundant number, since it is smaller than the sum of its proper divisors (143767568).

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

125054512 is a wasteful number, since it uses less digits than its factorization.

125054512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121 (or 12115 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 125054512 is about 11182.7774725244. Note that the first 3 decimals coincide. The cubic root of 125054512 is about 500.0726721037.

The spelling of 125054512 in words is "one hundred twenty-five million, fifty-four thousand, five hundred twelve".