125685680 has 40 divisors (see below), whose sum is σ = 293311584. Its totient is φ = 50086400.

The previous prime is 125685673. The next prime is 125685683. The reversal of 125685680 is 86586521.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (125685683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19685 + ... + 25275.

Almost surely, 2^125685680 is an apocalyptic number.

125685680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125685680 is an abundant number, since it is smaller than the sum of its proper divisors (167625904).

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

125685680 is a wasteful number, since it uses less digits than its factorization.

125685680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885 (or 5879 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 125685680 is about 11210.9624921324. The cubic root of 125685680 is about 500.9125734062.

The spelling of 125685680 in words is "one hundred twenty-five million, six hundred eighty-five thousand, six hundred eighty".