125780562 has 24 divisors (see below), whose sum is σ = 272813580. Its totient is φ = 41882400.

The previous prime is 125780549. The next prime is 125780563. The reversal of 125780562 is 265087521.

It is a happy number.

125780562 is a `hidden beast` number, since 1 + 25 + 78 + 0 + 562 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 116834481 + 8946081 = 10809^2 + 2991^2 .

It is not an unprimeable number, because it can be changed into a prime (125780563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16812 + ... + 23112.

Almost surely, 2^125780562 is an apocalyptic number.

125780562 is an abundant number, since it is smaller than the sum of its proper divisors (147033018).

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

125780562 is a wasteful number, since it uses less digits than its factorization.

125780562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7418 (or 7415 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 125780562 is about 11215.1933554442. The cubic root of 125780562 is about 501.0385904992.

The spelling of 125780562 in words is "one hundred twenty-five million, seven hundred eighty thousand, five hundred sixty-two".