125666788 has 24 divisors (see below), whose sum is σ = 250766712. Its totient is φ = 54587904.

The previous prime is 125666753. The next prime is 125666789. The reversal of 125666788 is 887666521.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 125619264 = 218^2 + 11208^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (125666789) 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, 70195 + ... + 71962.

It is an arithmetic number, because the mean of its divisors is an integer number (10448613).

Almost surely, 2^125666788 is an apocalyptic number.

It is an amenable number.

125666788 is a deficient number, since it is larger than the sum of its proper divisors (125099924).

125666788 is a wasteful number, since it uses less digits than its factorization.

125666788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142191 (or 142189 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 125666788 is about 11210.1198923116. The cubic root of 125666788 is about 500.8874745127.

The spelling of 125666788 in words is "one hundred twenty-five million, six hundred sixty-six thousand, seven hundred eighty-eight".