6125666 has 4 divisors (see below), whose sum is σ = 9188502. Its totient is φ = 3062832.

The previous prime is 6125663. The next prime is 6125671. The reversal of 6125666 is 6665216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 225625 = 2429^2 + 475^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6125663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1531415 + ... + 1531418.

Almost surely, 2^6125666 is an apocalyptic number.

6125666 is a deficient number, since it is larger than the sum of its proper divisors (3062836).

6125666 is a wasteful number, since it uses less digits than its factorization.

6125666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062835.

The product of its digits is 12960, while the sum is 32.

The square root of 6125666 is about 2475.0082828144. The cubic root of 6125666 is about 182.9719168189.

The spelling of 6125666 in words is "six million, one hundred twenty-five thousand, six hundred sixty-six".