125240256 has 84 divisors (see below), whose sum is σ = 372320312. Its totient is φ = 41741568.

The previous prime is 125240239. The next prime is 125240257. The reversal of 125240256 is 652042521.

125240256 is a `hidden beast` number, since 1 + 252 + 402 + 5 + 6 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125240257) 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 11 ways as a sum of consecutive naturals, for example, 11526 + ... + 19578.

Almost surely, 2^125240256 is an apocalyptic number.

125240256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125240256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186160156).

125240256 is an abundant number, since it is smaller than the sum of its proper divisors (247080056).

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

125240256 is an frugal number, since it uses more digits than its factorization.

125240256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080 (or 8058 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 125240256 is about 11191.0793045175. The cubic root of 125240256 is about 500.3201363151.

Adding to 125240256 its reverse (652042521), we get a palindrome (777282777).

The spelling of 125240256 in words is "one hundred twenty-five million, two hundred forty thousand, two hundred fifty-six".