125547520 has 176 divisors, whose sum is σ = 358437888. Its totient is φ = 41287680.

The previous prime is 125547493. The next prime is 125547523. The reversal of 125547520 is 25745521.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125547523) 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 15 ways as a sum of consecutive naturals, for example, 1110984 + ... + 1111096.

Almost surely, 2^125547520 is an apocalyptic number.

125547520 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 125547520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179218944).

125547520 is an abundant number, since it is smaller than the sum of its proper divisors (232890368).

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

125547520 is a wasteful number, since it uses less digits than its factorization.

125547520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 125547520 is about 11204.7989718692. The cubic root of 125547520 is about 500.7289633750.

The spelling of 125547520 in words is "one hundred twenty-five million, five hundred forty-seven thousand, five hundred twenty".