125391504 has 80 divisors (see below), whose sum is σ = 372718208. Its totient is φ = 35582976.

The previous prime is 125391493. The next prime is 125391517. The reversal of 125391504 is 405193521.

It is an unprimeable number.

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, 51564 + ... + 53940.

Almost surely, 2^125391504 is an apocalyptic number.

125391504 is a gapful number since it is divisible by the number (14) 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 125391504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186359104).

125391504 is an abundant number, since it is smaller than the sum of its proper divisors (247326704).

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

125391504 is a wasteful number, since it uses less digits than its factorization.

125391504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 125391504 is about 11197.8347907084. The cubic root of 125391504 is about 500.5214613005.

The spelling of 125391504 in words is "one hundred twenty-five million, three hundred ninety-one thousand, five hundred four".