125530028 has 48 divisors (see below), whose sum is σ = 245247744. Its totient is φ = 55848960.

The previous prime is 125530001. The next prime is 125530037. The reversal of 125530028 is 820035521.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 125529979 and 125530006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206501 + ... + 207107.

It is an arithmetic number, because the mean of its divisors is an integer number (5109328).

Almost surely, 2^125530028 is an apocalyptic number.

It is an amenable number.

125530028 is a deficient number, since it is larger than the sum of its proper divisors (119717716).

125530028 is a wasteful number, since it uses less digits than its factorization.

125530028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 125530028 is about 11204.0183862755. The cubic root of 125530028 is about 500.7057074853.

Adding to 125530028 its reverse (820035521), we get a palindrome (945565549).

The spelling of 125530028 in words is "one hundred twenty-five million, five hundred thirty thousand, twenty-eight".