125755780 has 12 divisors (see below), whose sum is σ = 264087180. Its totient is φ = 50302304.

The previous prime is 125755771. The next prime is 125755793. The reversal of 125755780 is 87557521.

It can be written as a sum of positive squares in 2 ways, for example, as 85229824 + 40525956 = 9232^2 + 6366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143875 + ... + 3143914.

It is an arithmetic number, because the mean of its divisors is an integer number (22007265).

Almost surely, 2^125755780 is an apocalyptic number.

125755780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125755780 is an abundant number, since it is smaller than the sum of its proper divisors (138331400).

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

125755780 is a wasteful number, since it uses less digits than its factorization.

125755780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6287798 (or 6287796 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 40.

The square root of 125755780 is about 11214.0884605036. The cubic root of 125755780 is about 501.0056825158.

The spelling of 125755780 in words is "one hundred twenty-five million, seven hundred fifty-five thousand, seven hundred eighty".