125424520 has 64 divisors (see below), whose sum is σ = 317157120. Its totient is φ = 44292864.

The previous prime is 125424511. The next prime is 125424539. The reversal of 125424520 is 25424521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6717 + ... + 17203.

It is an arithmetic number, because the mean of its divisors is an integer number (4955580).

Almost surely, 2^125424520 is an apocalyptic number.

125424520 is a gapful number since it is divisible by the number (10) 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 125424520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158578560).

125424520 is an abundant number, since it is smaller than the sum of its proper divisors (191732600).

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

125424520 is a wasteful number, since it uses less digits than its factorization.

125424520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10534 (or 10530 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 125424520 is about 11199.3089072496. The cubic root of 125424520 is about 500.5653871005.

Subtracting from 125424520 its reverse (25424521), we obtain a palindrome (99999999).

The spelling of 125424520 in words is "one hundred twenty-five million, four hundred twenty-four thousand, five hundred twenty".